What is with all of these nonsensical pbe changes?

graves ad being more or less reverted from its base nerf awhile ago. the leblanc hp changes. gangplanks barely non existent buffs. its like the balance team is a joke. do they do even play the same game as us? and jhins almost non existent buffs. not just buffing his passive scaling to compensate for the reduced crit,attack speed and general stat loss he received from all these crit reworks which brought new shiny effects at the cost of raw stats which jhin values more so then other adcs.(compare current jhin to release jhin back when he had access to 50% crit dmg from infinity edge and god bless higher flat ad and scaling per level ad in addition to attack speed runes which synergized extremely well with him to current jhin who struggles to even reach 300 to 400 ad and 500 ad) i just don't get it. why can't they make changes that we care about? hit champs that are actually out of line.(looking at you riven) and don't even get me started with the random zoe changes that just mind boggling show just how out of touch riot is with their game.( doesn't help that these zoe changes just seem to pop up every other pbe cycle almost as if a rioter has it out for zoe )