Why is the Abrams considered dogshit?

I see a ton of people complaining about the Abrams being awful compared to all of the other top tier tanks (Leo and BVM especially), and the Leo and the strv I can understand, they are simply the best tanks in the game, but the abrams has so many incredible features, I don’t see how it can be at all considered bad. It’s fast as fuck, like uncontested mobility is so strong in this game, it’s a mega plus. Dummy thick ahh turret makes it near impossible to kill if its hull down (aside from the mantlet weakspot all tanks have) and on top of that, it has like -10* of gun depression, allowing it to work most ridgelines in the game. Those three combos allow for strong gameplay. Along with a very high rate of fire, and a good gun, it fucking shreds. It’s only downside is its drivers port and turret ring (wow just be hulldown and that problem is solved!) It baffles me that people complain about the Abrams being bad when it simply is not. How is this thing bad?