He's been screwed over by an insane clause in his contract. If it was a straight obligation to buy, he'd be getting games. If the number of games was vaguely reasonable (30 league appearances, something like that) then he'd be getting games.
That we don't have to buy him, and there's a really low threshold to the point when we do, means that he either needed to hit the ground running straight away (which feels unlikely given most of our signings take a few months to settle in) or be frozen out. No room for error, it was either all or nothing.
I feel for the guy, the whole thing is a mess, it's none of his doing but he is going to have to deal with the consequences anyway.
All this said - whilst I have a great deal of sympathy with the guy, we're not a charity for top-5-squad-player footballers. He's just going to have to wait out this season and hope another club comes in for him over the summer.