The Habs are at the part of their rebuild where they need to make serious decisions about kids coming though the pipeline, we saw that last year with Harris and this year with Mailloux and Heinemmen. There are a significant amount of NHL players in their prospects (now mostly bottom 6 forwards and 5-6 D that will play in the NHL), some of those need to be moved or shown longer term commitment. They cannot block the pipeline for others coming up by not making decisions.
WiFi is an interesting case. I do not think anyone will offer up a 1st round pick for him, but that being said, until Reinbacker is ready and Struble shows continued growth, I do not think that is a trade you will make right now. However, if WiFi is part of a package deal that brings a real 2nd line center, whatever that package may look like, I think you make that deal.