Nothing is new with junglers ganking at lvl 3
what's wrong with those poeple?
the jungle was broken since ages, deciding your lane since ages, doing 2 buffs into a gank since ages. Why people are only complaining 6 years later?
wait wait i'm sorry, there is a year where the jungle wasn't broken and junglers couldn't gank quickly. Yeah in season 1 where the jungle was dangerous, but we only had 8 junglers:

choose what you prefer, a balanced jungle or a lot of junglers.
were all really, really common in season 1 as well.
and that's only if they take red first and use it to gank...