I think they either lost key developers or those developers are working on something else, the last six months have been nothing but shallow fixes suitable for more junior engineers.
I guess we only get 1 update per year of actual ship balance to help the meta. Last year it was March, so, maybe in 1.5 more months we will see an actual interesting patch. At least for those of us who arent playing follow the leader and press f1 when commanded.