why do we still have the nearly the same balance as week 1?

im super confused. we're like half a year into this game right? why have bad talents not been buffed? why have terrible action skills not been tuned? why are there still so many unusable class mods and guns in the game?

how much time does it take to slap on a +50% on stuff that is obviously terrible. doesnt that add so much playtime for almost no cost to them? can anyone explain this?