Most times the attendant bees have acquired the smell of the colony by the time they chew their way out,and if they do not die will be accepted by the colony.
Removing the attendant bees from a queen cage is just more worthless work. Just make sure the cage is situated so any that die don't block the exit hole.
To remove the tenant bees will only slow the process of the candy plug being chewed away from the inside.
Let's just make sure we under stand the difference between attendant bees in a queen cage and the one's that tend to the queen in a colony environment.
From some of the post here lately it appears the heat is getting to some People.