I am not even slightly worried about Capcom adopting any sort of egregious microtransaction model for Monster Hunter, or any of their games really.
A lot of the hatred of Capcom is more over poor decisions over the direction of games regarding stylistic choices and marketing to specific audiences.
Street Fighter V actually has a pretty great model for DLC. If you've played even semi regularly since launch should have easily been able to afford the vast majority of DLC characters, stages, and costumes. The ire of SFV is more focused at the decision to pander towards the eSports crowd and Fighting Game Community, over the casual player who enjoys more singleplayer content in their fightans.
There is the whole Dante's hair debacle in DmC: Devil May Cry. Despite being better than half the other games in the series from a mechanical, character, and story perspective, people were too invested in the whole Uncle Dante meme to accept the new game.
Then there is stuff like MvCI where, unless you followed the game closely and knew that the game was made in under a year and with (not even exaggerating) less than the budget of a Street Fighter V Season Pass, and under the strict rule of Disney who, until the VERY recent acquisition of most of Fox were hellbent on killing off any and all things X-Men/Fantastic Four, you would just think that Capcom were lazy and wanted to cash in on the brand.
Don't even get me started on RE7. RE fans have no fucking clue what they want. They shit all over RE6 for being too actiony, yet the game is the best selling in the entire series, yet when RE7 is the truest to form RE since even before RE4, they bitch and moan about the game being in first person. Like seriously just fuck off into the sun.
But yeah. I am totally confident that MHW will be a solid and fulfilling experience. Maybe some costume shit, or a few expansions, but I would bet money there won't be anything even remotely resembling EA or Activision style lootbox bullshit.