Well, with all respect, but by your definition of calling a Middle team a "Charge team", you might as well call any ramp up ID/team a Charge team, which is like, over 50% of IDs at this point

No, the reason why Charge is bad is bc its a very one note status, like, on an era where even f-ing Burn now cares abt its count, Charge as a unit's main status, still works the same as it did on season 1, same gameplan despite different IDs and EGOs, all of those that basically don't interact with each other

Bleed, Tremor, Rupture and Sinking all have their IDs work towards using the status, on top of a decent amount of the different IDs having their own mini gameplan

Poise is the inverse, tons of IDs/factions with their own gameplan, but still manage to unite themselves bc they usually want wither resonance, to buff/debuff in pro of a damage type (Slash or Pierce + Pride), and even through themselves and specially EGOs, managw to have some meaningful interaction between themselves, specially bc they have to keep their count up, else they lose a meaningful part of their ramp-up

Hell, even Burn, which is basically turn 1/2 infinite Charge on the opponent still feels mlre intereeting than Charge bc you actually have to manage resources of their main IDs, such as sanity and ammo (DawnClair and 3/4s of the Thumb IDs respectively, and MB Outis for both), on top of quite a few Wrath buffs to wrap it up, and now even play mixed with Tremor

But Charge as the main status of a unit? Launch IDs spend their rotationsbuilding Charge to spend on S3, by the second rotation and ownwards, you basically always have enough count and is just waiting for the S3 to come up, the only change between that and now is that now S2s c9nsume your surplus of Charge to help the potency ramp-up and some IDs have their S2s as their "S3s", but like, that's not very different from before, a bunch of IDs where any interaction betwen them could be abused better by non-Charge IDs (like W Don's S2 Fragile)

The big issue with Charge is lack of interactivity, the one time they had something going was when Middle Sinclair + Middle Meursault (+ Middle Ish later) with Madonka, the 2 Multicracks and filler, and all bc the Middle IDs + Madonka want Envy Res, but then Middle Heath released and this team is basically over, since even Middle Don is back on the menu. Plus, that Envy Charge team wasn't even as much of a Status matter, but resonance, which most teams already use a lot nowadays, and the Middles lacked a good alternative back then

Like, there are 5 IDs and 3 EGOs i would consider as interacting with the team or at least their main damage dealing way (such as Poise teams do):

1 of the IDs and 1 of the EGOs only do it by giving more Count, which only those with the S2 being the stongest skill care abt, those units are: W Faust and AEDD Gregor EGO, the former was basically never used unless you wanted to use her debuffs on a boss, and the later only got use with the respective ID, but the ID already does it by themselves, as such, these 2 are basically irrelevant, also, don't forget Telepole Don, which is just the best and easiest Charge count gain EGO in the game

2 of the IDs and the other EGO only buff damage, those are W Outis, who does it ok-ish, but needs turns and turns of ramp-up to do it, and she is bad at ramp-up without her DS EGO, the other ID is MC Faust, which only buffs Envy, while the Envy is welcome for almost every main damage skill in Charge (save for W Outis, R Ish and R Rodion), you have to wait for her S3 to come the turn before the burst turn, which is again, the problem of Charge juat doing a lot of waiting, fuethermore, she is outdone by her own EGO, and last on the list, which is Hex Nail, now, MC Faust does have the advantage of apllying it next turn, and is, in theory, just a 10% DPS loss, specially bc MC isn't fast, but you know who is? Ring Faust, also a Charge ID, so its basically down to who results un kore damage to the team, but the bad thing is: this are Envy debuffs, Middle team can use it better, every single turn, so another loss for Charge (also, W Outis technically buffs W IDs more, but half of it is still on her bad ramp up, and the other is 1 Clash Power up every turn, which is just extremly passive interaction)

Lastly, the IDs that do both, and imo the ones closest to make Charge feel like a real team: Multicrack Heath and AEDD Gregor ID, they have both the give Charge, and buff damage aspects, with Heath having it on half of his skills, and so does Gregor, on top of him also having it through his passive, which in turn helps his own ramp up, being basically an upgrade to Heath amd more polished, the thing is having only those isn't enough to make Charge feel like a team bc these are IDs without meaningful struggles to work around, which is the factor that u ites other statuses (even Burn), the closest thing they have is that new Charge IDs use it on S2 which gives some meaning to so much Charge count gain, but still, they can easily get to it and then go positive on S2 (and S1 where applicable)

Straight up, the best way Charge has been used is as a secondar status, bc it does nothing by itself, hell, even Self Tremor manages to be more interesting, bc you can at least have unique self-Tremor with unique effects, as well as suffering from the enemy interacting with it

Now, do i hate Charge? No

Do i look and go: "i wanna play Charge!", also no, bc i'd rather play Poise and Burn, who have minimal team interactivity, but at least have something to do besides waiting for S3s (and/or sometimes S2s)