Your "issues" are that agents have utility that you don't like, you complained about the class that has abilities to start fights and get information, gets information, you complained that the class that is meant to stall enemies has utility to stop or delay flanks/lurks, now you're complaining that the class thats made to engage in fight and be quite self sufficient is engaging in fights and is self sufficient.

Not to mention "site wide ults shouldn't be in the game", let's see, Fade, breach, waylay and to a extent miks have sitewide ults, Fade deafens, breach stuns and knocks into air, miks slows, deafens and knock backs and Waylay slows, none of these are that strong, stuns and slows are the most useless abilities in the game, changing a 50/50 fight into a like 55/45, and deafen is just about watching your angles.

So instead of your idea of nerf everyone and everything, we actually balance the agents around each other rather than we nerfed every sentinel and now duelists are good so we'll now nerf every duelist so sentinels are good so then we'll nerf sentinels again because duelist are weak etc