Besides the fact that I like platformers and I am the target audience for this.
I am interested to see what kind of appetite there is for this type of game within the current PlayStation ecosystem.
Provided the game is good, it should be the perfect test case to find out.
More than you probably think.
Sonic sales splits on the UK boxed charts were generally even between Switch and PS4/PS5, at times with the latter ahead. And we already know Rift Apart sold 4 million copies on PS5 alone before the PC port released. Those are great numbers for a cartoony platformer-based game that's not named Mario.
As long as the budget is sensible, as some mid-budgeted AA (or between that and a high-budget AA), this game should do more than fine and can probably hit 3-5 million lifetime (over 2-4 year period) on PS5 with right combination of quality, marketing, pricing, promos, and occasional new content.
And if I were Sony, after some time as a PS5 exclusive, if I were thinking of porting elsewhere, I'd target mobile over PC. The game could probably be easily retrofitted with a structure fitting a mobile audience, that could open up monetization options you can't do on PC. Also it would probably be more appealing to a larger audience on mobile gaming than the PC equivalent.
I also think with that type of structural change on PC, they can probably actually get away with a shorter porting window since someone who'd prefer the game the traditional way will get it on PS5, but someone who wants it in a more mobile-like way will get it through a mobile store (maybe SIE could partner with Apple to put it in Apple Arcade in some capacity). Also the mobile version would likely have lower performance than the PS5 one, so those who'd want the best-performing version would opt to get it on PS5.
You see, Sony? You probably
can do a multiplatform strategy with shorter staggers or even Day 1 on multiple devices. You just chose the wrong device priority to primarily focus on (PC). Use PC for most GAAS only; use mobile for most AA traditional & some GAAS only. Keep some GAAS, AA traditional & all AAA traditional exclusive to your console.
It's literally that easy.