So I don't care about "small forward" and traditional position codes as much, even outside the newish trend of positionless ball if in 1997 we called both Kobe and KG small forwards how much could that possibly tell us about what they do? But I absolutely agree with your thesis that talent is crazy-high across the role board as I see it:

Primary creators

Scoring guards

Wings

Small bigs

Big bigs

Assigning players to one category or another are all based on whatever possibly-meaningless distinctions are bouncing around in my head, but as a rough heuristic I think it works pretty well. You also avoid having to worry about a weak small forward class, because for me PG, Kawhi, and *mayyyyyyyyybe* even Durant and LeBron are still wings.