He remains a legitimate point of discussion for that very reason and he manages in the same division so we will come across him. He’s had plenty of opportunity, and will likely have again, to recant on his reasons for leaving.
For the sake of his new wife I hope he doesn’t behave in his personal life as he did in his professional, as an apparent total lack of insight into personal limitations and willingness to acknowledge mistakes never bodes well for a strong relationship.
On the other hand, as a Well fan, I hope he carries on his managerial career as he left us as that will guarantee a Killie side fighting relegation.