Zed did not need a buff.
He's been banned since the beginning of time...sure some youtube content creators will try him out in the jungle as the balancers intended but I see this being abused really hard for gold-funneling in between waves midlane.
In general the idea of 'making jungle a higher pickrate for new players' sounds good but this is only going to make a meta where laners will pick champions that can steal or heal off jungle camps during skirmishes.