Current state of meta

Wee, it's so fun! I can literally 1v1 a hammer with akm at cqc now because I just knock them back with quick melee. Literally every other melee weapon are just way worse now. So now instead of a variety of melee players, we just have a handful of hammer players and every single game is full of ks23 because for some reason devs thought what it needed was a dmg buff. And hell yea, rpg is still at 110 dmg despite it being in 90% of heavy loadouts even before the dmg buff.
These balance decisions are beyond my understanding, hopefuly someone can explain them to me?