User blog comment:Mckrongs/Monster Hunter Frontier Season Forward 4/@comment-1685631-20120428174120/@comment-87.219.68.140-20120501165159

I have literally never seen anyone saying Frontier incorporating 3rd gen stuff is wrong. If anything, I've seen people surprised because Frotnier and the main games are supposedly developed by different teams.

Also none of the examples you've said apply because all those things were already in the main series before Frontier and Tri. The thing is that Frontier can't directly use 3rd gen monsters and Tri can't use Frontier monsters.