If governments ever begin to use APIS information, other than to check your name as given against their "black hat" name data base, I can see even less flexibility in matching the name to the passport.
It is insane to stand in queues to give immigration the same information you gave them (or could give them) on-line. Approval to enter should be given based on APIS and all they should be checking is that it is your passport you are holding. If they don't want you, you shouldn't be allowed on the plane.