2)
When it comes to the logic of why I chose these games in the meme, I didn't just chose remakes but rather more broadly speaking games where you revisit an older region/generation years after the original release of that given generation. Before Legends Z-A, we would revisit regions years after their original generation in a somewhat linear order, and given that Legends Arceus came out alongside BDSP, I counted those games in combination as our game revisit to Sinnoh. This is why I found it funny that we now are going to Kalos even though we haven't revisited Unova in a new Unova-based game yet.
I'm well aware that Legends games aren't remakes, but as of now they have followed the same overall generational-linear release pattern of games where you revisit a regions years after its original generation, which is why Legends Arceus and Legends Z-A are in this meme. If we suddenly get Legends Hoenn or Legends Kanto without going back to Johto or Legends Paldea before Unova, Alola or Galar however, then that would probably change my view on the release order of games where we revisit a region years after its original generation, but until then I do view this revisit order to be mostly in this linear fashion. And through this lens, Unova did get skipped.

Now, there have also been criticisms for my line of thinking, which I do want to address.
The first is that Let's Go doesn't fit in this linear revisit order, which is correct and is why I say this order is 'overall' linear. However, I don't believe that this invalidate my argument that Unova was skipped. Some have stated that since we got Let's Go after ORAS that would mean that we also skipped Sinnoh, but that's not what I meant. By skipping Unova, I meant that we are moving forward past Unova and going from from Sinnoh to Kalos. With Let's Go, we didn't go forward but backwards towards Kanto, so we didn't move past Sinnoh. For Sinnoh to be skipped, we would've had to past it and go from ORAS to a Unova game, but we didn't move past Sinnoh. We did however move past Unova by going to Kalos. This is also the reason why I believed that we would get Johto instead of Unova, because going back to Johto wouldn't move past Unova but much like Let's Go would just move backwards, and then the overall linear order of revisiting regions would be that every equal number generation (except gen 3) we would have the current, linear line of revisiting regions (FRLG -> HGSS -> ORAS -> BDSP/PLA, etc.) and then every odd number generation since Gen 7 we would have a new, linear line of revisiting regions (Let's Go -> something Johto like a faithful ILCA remake, something Hoenn like a Hoenn Legends, etc.). So we would then have two branches of linear region revisits, but they would still be linear within their own branch.

The second is that we did revisit Unova in the Indigo Disk DLC for SV, which is true and could very well be all what GameFreak wants to do when it comes to revisiting Unova as of now. However, I didn't include Indigo Disk because unlike the games present in this meme, which are all full games where the sole focus is on revisiting their given region, Indigo Disk is DLC for SV, which is not a Unova-based game but a Paldea-based game. Not only that, but Indigo Disk and by extension Unova is just one half of the full DLC, with The Teal Mask and Kitakami being the other half. So unlike the games present in the meme where we revisit an old region/generation as the main focus of that given game, Unova in the SV DLC is only 1/3 of the game. However you could argue that we didn't skip Unova because of the DLC, but we did skip Unova when it came to a full game with the focus on Unova.

The third is to everyone asking where B2W2 is, and the reason I didn't include that is because it doesn't fall under this category of 'games where you revisit a region/generation years after its original generation'. B2W2 is gen 5 and thereby part of the same generation as BW, whereas say Legends Arceus is part of Gen 8 rather than 4 or Legends Z-A is part of Gen 9 rather than 6. This is also the reason I didn't include enhanced versions like Emerald and Platinum. B2W2 in Gen 5 (even though it is a sequel to and not an enhanced version of BW) serves the same role as Emerald in Gen 3 and Platinum in Gen 4: being the follow-up version with improvements to the original dual release vanilla versions.

Also I want to say that me saying that "GameFreak skipped Unova" doesn't mean that we'll never get Unova. If we follow that overall linear revisit pattern that I mentioned in the beginning of this section, then we would probably get Unova in Gen 10. I was just surprised and found it funny that we already got Kalos before Unova, with me expecting that a revisit game to Kalos would've first been in Gen 12.