I disagree. I think Alysa & Isabeau are stronger locks for the Olympic team than Amber. Polina Edmunds correctly pointed out in her Worlds recap that Amber, despite coming into Worlds undefeated, did not have a completely clean competition all season. Yes, her scoring potential is tremendous, but for a botched layback spin by Alysa at Nats, she would not have been undefeated coming into Nats - and that is, in part, because Amber also had errors in both her SP & FS.
The difference between Amber & Alysa/Isabeau is that ability to lock in and not let early mistakes affect the rest of your program & to remain focused & zoned in for the entire program. Both Bradie & Sarah have a clear edge over Amber in that regard. If they come in next season with increased tech, I see no reason why they can't take advantage of Amber's typical mistakes to beat her out with consistency. Amber's goal this off-season should not be on adding another 3a to her FS - it should be on continuing to improve her own program consistency & focus. That's what will get her on the Olympic team.