Amen has more PG skills than Avdija, but similarly, that doesn't mean he's a PG; may not even be be a good primary ball-handler. And pretty obviously, perimeter shooting is his glaring flaw. Scoot has those advantages over him, but that's about it at this point
Amen is bigger, may actually be faster, and can guard more positions at an all-NBA level. He can't fit into a lot of lineups because of his shooting, but when he does fit, he's a high impact player. Maybe the Blazers would have been better served drafting Amen, but with Sharpe, Camara, Avdija, Grant, Thybulle....I'm not sure there is any room on the roster for a 26% shooter from three. Of course, after adding Jrue & Dame, there may not be much room for Scoot