You know what bothers me? This kind of shit happens all the time and there isn't this much backlash. Hell, when Final Fantasy 7 and onwards become Playstation exclusive and abandoned the console that made them famous (NES and SNES) Nintendo fans didn't fuss like this.
When Crash Bandicoot went multiplatform I don't remember the internet going apeshit.
When Rare and all their amazing ip's (Conkers, Banjo, and Perfect Dark) were bought by Microsoft I don't remember seeing all these meltdowns.
Video games are an industry, a business, and companies do what they can to survive. Platinum is probably ecstatic that their developmental efforts will not be wasted and their artistic vision will be reached due to Nintendo funding the game. Instead of Platinum having to lay off employees or throw out a nbunch of code, they have new hope again, a larger budget, more marketing, and only need to focus on developing for one console (allowing for better optimization of games). No need to shit on Nintendo or Platinum for what happened today. Both of them got what they wanted; Nintendo got an action button masher that they don't have in their lineup, and Platinum got a publisher to fund their game.