I doubt the owners have the end goal of selling. It's far more likely that they want to grow the club to be a valuable asset that can be used as such. There's a lot of ego involved in club ownership these days. They want the club to succeed.
I'm not a Rafael fan and I think there's validity to the theory that he could steady the ship after the likes of Walsh and Koeman. If that's the case, then great, at least there's a plan that's more than throw gobs of cash at it and see what happens.
I just hope he keeps some fun players and doesn't suck the life out of the club in the process.