My assumption is that Stevens' deal lines up with when his youngest child finishes high school, give or take a year. Realizing he might have lost the locker room but also not wanting to uproot his family or be apart all the time (and probably also being a little burnt out), this was probably the best solution for him, for Wyc's wallet, and for the franchise to save face. However, it's not clear this is what's best for the team and the organization as a whole which is what the players and fans should be concerned about. A totally clean break would have been an admission that the C's narrative about being a top-shelf, consistent organization was false. That being said, I do at least give them credit for making a change that undoubtedly was very difficult for Wyc.
I assume that Stevens' plan currently is to do the job for a few years and after his youngest graduates, reconsider coaching again. He could easily get a job and the same salary elsewhere, it's not like the contract he signed last year wouldn't be easy for him to rip up and let Wyc off the hook. However, it's clear to me he wants to stay in the area and also probably feels like leaving now would be kind of a failure.