I'm OK with that.
1. Don't think experience with organizational/administrative aspects is crucial. Journeyman like Ross have seen bunches of different spring trainings; you can get notes on spring-training scheduling; and you can hire a veteran bench coach who's gone through a lot of the administrative stuff.
2. I'm guessing front office is fine providing the analytics, sending them down, and let the manager apply and implement.
3. I suspect players are more likely to believe a younger manager can relate and is approachable, even if a more experienced guy might actually be just as good and open of a communicator. But perception is a thing.
4. I expect a young, unproven, first-time manager is hugely energized and self-motivated to succeed, to win, and to prove himself.
5. Communication, people, and relational skills won't improve much with experience, and may be possessed by a rookie manager.