MML3 wasn't crowdfunded, and none of that is true. It was an open development process where fans could submit fan art and whatnot to help vote on designs for the game and whatnot. In all respects, it was the planning stages of a usual game project, being shown in the open for fans to do stuff with.
But like with anything in the planning phase... It has to be greenlit. MML3 was never greenlit and they warned that if the prototype bombed they would kill the game since it wouldn't be greenlit. The problem was the eShop delay caused the prototype to be delayed, and with Inafune leaving and people in Capcom not knowing what to do without their usual leader, along with this project being one from a niche franchise that never broke a million...It pretty much just led to stuff being canned and not meeting greenlight without a prototype. More of a series of unfortunate events over anything else, really. Same with all the nothing that came until Legacy Collection.
Capcom USA noted a few times they wanted to try something with Mega Man, but Capcom Japan would always shut them down. They did get their way on reviving Strider and Ducktales in the meantime however, which were fine stopgaps. They even are the ones that cancelled Rockman XOver's US release as they HATED the game themselves and knew the fan reaction was bad.
Mega Man was being milked to death by that point anyhow, so it was probably time for a break. The problem was we didn't know who or what was in charge due to all the uncertainty and people riding on MN9's KS because they wanted to pwn Capcom for not rushing out another game without direction.
Then MN9 became a disaster, go figure. Legacy Collection ended up beating it to retail which I also find super duper funny looking back, and that broke a million, a figure not many MM games even hit to begin with. Since then, they've been getting back on track due to successful collections and MM11 breaking a million (along with concrete confirmation the new director is working on a new Mega Man title, meaning it's not a one hit wonder), and things are looking good.
I say it's the perfect time for L3 as a tons of those old staff are still at capcom and they have to do it eventually before they end up getting too old to stick around, but the nicheness would mean either a Legacy Collection to test the waters before 3, or a crowdfunding to make it happen by force. To be blunt, their switch support isn't anything out of the ordinary either as nearly every game they've released since early 2018 has come out day and date on the Switch, save for the more intensive games that would absolutely not work on the system at all. (RE2/3 Remakes, DMCV, MHW) All their games besides MM11 and those have been ports or compilations of some kind, and thus that's why it's seemingly all we get alongside the extra stuff like Dogma and DMC1-3. We even freaking got Shinsekai as a console exclusive, which is a pretty dope thing since it's one of the Apple Arcade's best metroidvanias and most thought it wouldn't ever leave mobile.
Can't really blame them for not putting much on switch, when their non-switch output isn't that big to begin with save for milking Resident Evil to death and making a MH game deliberately to not be confined to the low power of Nintendo handhelds. (Hell, RE 1, 4-6 all coming to Switch for no real reason other than to exist seems to indicate they want to milk it to death everywhere and they'll probably find a way to either halfass the remakes for Switch or port the OGs of 2/3 sooner or later) And with MHW being a megaton hit... Yeah, I do not expect them to ever bother with a bad port of World on Switch, or scale down world 2 for the switch to handle it. I'm expecting stuff like Stories or a remake of an older game from them, TBH.
If Mega man X9, a collection or a non-intensive game like that ends up missing Switch, then we can raise our eyebrows, but otherwise I'd say Capcom's support is super solid alongside Square Enix and Idea Factory. I'm confident this would end up on switch unless they decide to make L3 super intensive and against the style of the series for some dumb reason.