Dragon is too important, 5 dragons means no room for a comeback

Pretty sure coming back from 5 dragons down wasn't really a thing in season 4. I don't remember ever seeing it, much less being in a game where it happened.

No problem with dragon is buff order.

Needs to be.

Waveclear Movespeed Damage Towers Double Everything

Only time I've seen five dragons is in a bots game.

If you let your opponent reach 5 dragons, you do not deserve a comeback

It all depends on the players skill levels in the team. I was a jungler and we got 5 dragons and they still managed to win. Just because my team make poor engagement decisions since I always prefer to push lanes first before going to mid lane. So it's possible if you know how to wait for the right time to engage and if you commit.