I remember one time in the service when the guy next to me selected the notified when read option on a mass email. I think it went out to about 200 accounts.
The defense would have to be worse than Sisco or Severino before I'd be worried about it if he's the backup. Obviously a point does exist in which the defense is too poor.
My thinking is that some more time in the minors might have helped him develop and refine a proper third pitch. But in hindsight it probably wouldn't have happened anyway.
The only one of those names that I would even consider the idea that he was negatively impacted by early promotion is Gausman, which is funny considering that he's had a decent enough career to date.