The devs know about it . . . the gun meta was an issue during beta (shotgun and others) but they adjusted that. Yeah bloom for LMG / assault rifles and carbines (not as much bloom). COD is worse, they had a gun meta, every monthly patch, they have meta guns that have to pay or grind (but by the time you unlock them another set of guns is the meta) and it was like S tier and rest (even former meta) went to C-F below tier).
Blackwell is bad cuz cover isn't much . . . and the design is off. Although it's fun to counter snipe with the new vehicle (but usually the tanks and the IFV notice and shells and DAT MISSILE) comes our way and its curtains for us.
I noticed something when mostly ppl run SMG regardless of class, and my engi (I play support more and go for sig weapons) kept winning the most close gun battles out of any class. And when I was getting kills return fire on glints, something I could only do with sniper or dmr (But not often cuz they get me first) i knew something was up. I was even tagging ppl across the map with SMG (I ride passenger and repair torch sometimes) in the blackhawk.
Even beta for here they had meta (shotgun, M4 / HK 416).