He wasn’t really. His rep has been built on him looking good at Championship level while still 18/19. He doesn’t look terrible in the PL but certainly hasn’t looked special. Very few young players do immediately after stepping up to PL level though. At present IMO he is a step down from Aurier, in 2 or 3 years time though he could be a step up. You talk about Aarons having power but that has been my biggest concern about him, he has sometimes looked a little weak to me.
I see Aaron’s and Norwich’s left back, Jamal Lewis, as being about equal in their ability. Lewis is 18 months older though.
If we are to go for Aaron’s (I don’t think we will as he will be very overpriced) then we also need to be a lot more patient with Sessegnon. He is younger than Aaron’s, looked even better at Championship level and has had far less games at full back. Sessegnon’s ceiling is higher than Aarons’ I think.
if looking at young Championship right backs then I think Bogle or Cash would be better buys, both from a financial and ability perspective. Castagne from Atlanta would be the best signing that we could make though IMO.