Plus, the rules are changing next year about how many guys can be in the pen, etc.
More generally though, I'd say velocity and spin rate are trendy right now. That results in pitchers trying to maximize those who shouldn't be, because it costs them command. Yeah, you might strike a few more guys out, but if you're leaving meatballs in the middle of the plate 20% of your pitches you're going to be in for a rough time. If all you have to do is change pitch priority (like Stroman, throw what works best more), or you have the ability to add pitches to your repertoire while maintaining your command, then tweaking your approach to reduce contact will produce great results.