Natsu "Salamander" Dragneel said:
Overreaction much? End the species? They obviously just think they're better off as NPC's. And Toad was in MP9 recently and that's a spin-off. And I'm pretty sure nobody wants characters from a different series in their Mario game. That would be the reasons the apes should stick to their own games. DK and Diddy are a given now, but the rest arent as significant as the main 2 apes.
I admit overreaction, though it wouldn't be a good trend for toads, which does decrease their appearances.
It's natural subseries characters only have several seats, we usually want characters form the main series (Toad, Rosalina) before subseries.
If you mean to stick, there
would be DK's own spinoff line or frequent DK main games, though it's another topic.