Maybe that has to do with the rationale. I'm more inclined to believe that it has to do with the increasing evidence that peaks happen much earlier than traditionally believed and trying to get as many peak years as possible.
It could be that peaks happen much sooner, but that doesn't then explain the Fried, Wiegel, Newcomb (last year), etc.
I think it has more to do with the confidence that the FO has with the pitchability / approach to pitching they get from the coaches in Mississippi. By all accounts, all the pitchers that were at Mississippi last year progressed pretty significantly from the beginning to the end of the season.