Clearly an obligation to buy would have been our preferred option.
But you are right, an option to buy only suits the buying club and gives them the power. If he has a stinker, they aren’t going to buy him anyway, but if by some miracle he recaptured his form and tears up the league - he could be worth more than the option.
I’m torn, I think perhaps we will find ourselves short in attack - but then it’s only 4 months until the transfer window opens again, and if this is the first step in finally getting rid of him, it’s a risk worth taking.