I always thought it would do very well on PC. Really good sales!
To think, it was the best selling monster hunter when it passed 4.9m, and the best selling capcom game when it passed 7.4m. And now it's at 10.3m+ and still heading up!
Bringing Monster Hunter multi-platform is the biggest success story, with sales like that they should never go back.
I simply never understood why Japanese Devs go exclusive with their games instead of multiplate. Why is persona not on Nintendo? It would sell so much more on there. Same goes for yo Kai watch. Why didn't they release it on PS?. And there are a lot more.
There is a strong audience of JRPGs on Nintendo, PS and even PC. Even Xbox has a good JRPG fanbase. They should release on all these platforms instead of just going exclusive with one. The big JRPGs who went multiplate won big due to this like FF15 and now Monster Hunter.
Capcom would be insane to ever ditch the PS/Xbox/PC userbase for future monster hunter games, even if it's a spin off they want to bring to switch that's less ambitious so switch can handle it, it should be released on other platforms.