In addition to the strikeouts, I see that he builds his stats on a very low BABIP - .240 last season. Maybe that's a repeatable skill (a few pitchers like Kershaw do seem to be able to stay around .275 year after year), and Wilson's done something under .300 for all but one of his seasons, but I expect some teams are leery of that ability going away without warning. In 2017 when his BABIP was slightly above .300, his OPS-against was .764, which correlates well with his actual ERA of 4.50. Probably all this correlates with the eye-test that scouts file with their teams, too. I dunno, you'd think some team would have room for him, way down on their bullpen depth chart, but there's probably more group-think in the majors these days than ever before.