Tyreek Hill's future with the Miami Dolphins has been in doubt since last offseason. It was made worse when he went down against the Jets in Week 4 of this season. After struggling to define an offensive system without him, the Dolphins are a completely different team.
You could make an argument that Miami is playing better without Hill in the picture. There are no more chases for 2K yards, no more feeding the ball to the top receiver who wants it and demands it. The Dolphins were forced to get used to a life with Hill, and they may not want to see it revert to what it was.