I don't think he's boycotting anything. Tillman and Hunter still throw it and they spent time in AAA. He's right that the cutter has a reputation of being a better pitch than it actually is, and there's plenty of correlation of cutters contributing to reduced velocity. If he and Peterson think it's causation, they're more qualified than anyone here to make that decision, I think. I think his overall goal is to make younger pitchers understand that it is a secondary pitch, and should be treated as such.