That Tilt model was manufactured for flat(ish) ground. It also seems to be going into a plot of land around 200ftx300ft.
The dimensions don't work in the Ninja location - no matter what multiple buildings would need to disappear for it to work. If Cedar Flags expects to improve the entertainment in the park - which is a weak area especially compared to Cedar Fair parks - then they can't afford to lose Empire Theater and that along with Chop Six would almost certainly have to go. And the park can ill-afford to lose indoor seated restaurants.
The Tidal Wave location can work but it isn't big enough on its own. Once you start leaving that immediate location the areas around it aren't particularly flat - but there is empty space. It's not impossible but it's a more challenging location. The reality is Cedar Point already had a flat empty plot that happened to fit the model. Add to that it's a North America record, and potentially a FIRST depending on when COTAland gets theirs built, I think it's a no-brainer to send it to Cedar Point.
As for RMC Boss: Cedar Fair is kind of a diva when it comes to rides. If they run into any trouble with them, even prototypes, they decide to blacklist entire manufacturers at a drop of a hat. They disliked Intamin so much they even avoided using them for replacement parts for Intamin rides they already had (which according to the Ohio TTD accident report was likely a reason for that accident). Cedar Fair appears to be convinced that RMC is worthy of being on their blacklist - given the fact that Cedar Flags is the entire Cedar Fair management team I'd expect their blacklist to continue. RMC Boss might now be off the table despite the obviousness of it - and its structural shortcomings might make it a poor candidate for Gravity Group to use precut on it.