@cgf
Can't speak to the entire list but Netz and Rhein for me are among the best talents I've seen at their age group. I have them rated very highly along with Wirtz (who is miles ahead of OBM, IMO).
Don't pay much attention to the order. I started that list early in the lockdown & haven't sat down to put much thought into the order since then. If I were doing it now Wirtz would probably have moved into his own tier given what he's showing at the senior level.
That said, as I wrote on the last page, I'm not sure of just how high Wirtz' ceiling is...outside of his abilities as a playmaker; which I am already sold are pure class. So even now I wouldn't exactly be shocked if almost anyone from that group of attackers ended up passing Wirtz to become the best of that bunch...
...not after having written Gnabry off as many times as I did before Nagelsmann got his hands on him & finally tapped into the potential that had always been there
EDIT:
As for Rhein; I like him a lot too, but that's a really talented group behind the Bundesliga vets, Maier & Geiger, that isn't really in any meaningful order.
Stiller has been arguably even more impressive for Bayern's youth teams than what Rhein has shown to this point & is on the cusp of breaking through to the senior level...which I was initially trying to order guys by...while playing an important role for that fun to watch Bayern II team in the 3rd division.
Similar stories with Reitz & Bozdogan; who have comparable ceilings/talent levels to Rhein & Stiller -- though they are childhood 10s who are being converted into 8s at the senior level rather than lifelong 6s like the Bayern duo -- and are both already starting to break through at the senior level this season.
If Papela can't start to breakthrough by the end of the season he'll get asterisks like Abouchabaka, but his ceiling is still very high at the 8 and I'm not stressing about him making good on that potential yet.