Its almost like you didn't read the rest of my post:
You're arguments are poor. With such logic you can claim a lot of predictions to have no hold as nothing similar has happened prior. What I've shown is how new IP or even old ones, have achieved considerable success on PS4. Several of these are ARPGs. That, alongside PS4's undeniably large userbase overseas, from a company who says it makes most of its money overseas, is the precedent if a PS4 MH5 was ever going to happen.
One doesn't need to have a released a MH on PS4 to make some sort of gauge on the limits of a MH on PS4.
Last time I checked, RE7 was doing well. Whats the other two? MHXX and DR4? I mean neither have much consequence considering one was a spin off and the other was a franchise thats been on the wayside since the dev change.
As long as RE and MH stay in good health (which they seem to be) I don't think Capcom is in much trouble.
The Switch will never be able to make the PS4 obsolete. Sure its sales will dwarf it, it may even cause a loss of PS4 sales, but its clear Sony are focusing on the global picture here, and as such acquiring Japanese third party support is key. PS4 has no competition in such regards.
Its why nearly every Switch port that is desired is a PS4 game: it receives the lionshare of Japanese third party support. We've already talked about how Japanese pubs are looking at overseas sales with greater focus as well.