I think that's a bit rough tbh. What should he have done now that he realizes he's on a sinking ship with delusional leadership?
If he wants Collingwood so much that he's willing to wait it out for a year in...er...let's call it the 9th circle of Hell, I say bring him in. At least we can be certain that he's cherry ripe before we take on for his four remaining years.
And if he decides that they've fixed the club and ends his career there then I say that's fine too. If I was a Demon's fan I wouldn't be unhappy. Sometimes you need brave people to say no to the party line, stand up, and point out the rot before it kills you / you're club.