I don't think we know enough about the situation to say the club were desperate for the money tbh. I didn't think Watson looked right when he came back after the window, but put it down to him having been out and getting back up to speed. But maybe he wanted to go in January, the deal wasn't done, and instead of being professional and getting on with it he ended up letting it affect him. Perhaps the club accepted the bid out with the window, thinking at least it would resolve it and maybe he would then give all his focus on safc until the end of the season knowing it was done.
It's definitely fair to question the decision to play him but any time a player is lucky enough to wear our shirt and looks utterly disinterested they deserve criticism as well. In his case he's a supposed supporter, his PL move and money confirmed and he's got a chance to help us get promoted. To be jogging about like he has been is a slap in the face to everyone at the club who helped get him where he is today and everyone who has sat and supported him from the youth levels up. There's a way to do things and, regardless of what the club could have done differently, he's been utterly unprofessional.
He is only a youngun and I expect as he gets older he'll look back on this episode with regret. And unless his attitude improves significantly he'll look back on it having failed to make the most of his talent. Imagine a lot of the top players with a burning will to win going through the motions like that. They wouldn't even do it in training. Hopefully nowhere near the squad come playoffs and if he is, that's when I'll really question the manager