His decision should center on which team offers the best opportunity to pitch but I don't think that the Twins are that team. I would be happy if he did sign but I don't see the fit. He would be joining a competition for what might be only a 1st half gig. There has to be better opportunities out there (Seattle, Baltimore, Kansas City, Pittsburgh, etc,).
On the flip side, he could be part of a contender - rather than getting beat up in Detroit or KC, he could be playing AGAINST Detroit and KC. If he succeeds in whatever role the Twins are willing to give him, you could also make the argument that would be equally helpful to his career.
You are probably right but just playing devil's advocate because it's February!