I'm well aware of that, but he's also much older, has an injury history caused by his pitching, and had awful peripherals up until 2014 (meaning he only has a short history of dominance). Stroman's peripherals were amazing through his entire minors career and changed in the majors (K/9), likely, do to bad advice. Stro's more likely to continue to dominate if we regress to his career norms, whereas Carrasco may not for the reasons I listed.
That and age differences.