Something most of you forget... Riot balance team does know what it is doing and that's the issue...

Buffing like crazy champions : Selling Skins.

Buffing damage and increasing action ratios : increasing the WoW effect of E-sports.

Making Assassin supports : more wow/flashy plays in the bot lane.

Not caring about armor being useless : Yeah slow fights aren't interesting for pro play and e-sports, so tanks be better being some punchingballs with cc.

the problem doesn't come from the balance team, they just do what Riot's direction ask them to do...

they are just a scapegoat...