That’s a simplistic notion. There is no guarantee for any pitcher that they will keep up their pace after a couple of good seasons. The post season showed that he is hittable.
At some point soon his velocity will likely diminish. We will see how he handles that.
Its really not a simplistic notion. Not when you read about what the Astros did and how Cole changed his philosophy on pitching, it's pretty involved. Cole was a consensus number 1 pick and given the highest signing bonus ever. And he showed he had this ability in 2015 when he posted a 5+ WAR season. This isnt a fluke or some weird trick.
Cole had a lower ERA in the postseason than Stras. And he faced much better offenses.
Verlander velocity hasnt diminished. Scherzer's hasnt. Cole's has increased. He also has three plus-plus pitches he can use.