I know some girls who got to the B camp last year after others dropped out. They never knew why the kids dropped out and took their well earned places at B camp. All three of the girls worked incredibly hard to get to National testing, all of them do very well at meets and have all the skills they needed for testing. Sometimes testing just doesn't go well, kids have bad days at times.
But more to this just because you have a TOPs A camp kid doesn't make them the best of the best. It just makes them the best in testing at that camp of the kids who test TOPs. Many of the very best clubs, like WOGA and All Olympia do not even test TOPs. So just like in the Miss World competition, you maybe the best in the comp, but you might not be the best there is in the world.
I really think that any kid who got to testing and ends up at camp should feel as "included" as any other kid there. I would be horrified to think that some little 8 year is sent off to camp with a "just remember that you are only there because some little girls parents couldn't afford the trip". That would be so cruel and unecessary. These are very young children and the need to make a kid "know" she didn't really make is very callous. If a gym decides to keep that private, all power to them for making their gymnast feel secure, it doesn't matter how she got there.
The range of skills in the TOPs girls is huge, some really are strong L5's with some bigger skills, but others are up there with L9 skills. The coaches are well trained and know exactly how to motivate and bring on girls at all skill levels. There is no need to exclude kids. Plus the camps cannot run if there are not enough kids, I seem to remember Gary Warren saying that they need 70 kids to run the B camp, how will that work if only injured kids can be replaced?