Quick note; your vm background with 'momiji' makes it really difficult to read your message =/
She did gain experience but her sole goal WAS finding Chris, and I don't think Claire fought because she wanted to, but because the situations forced her to do it. Her brother is out there, alive, and fighting the wrong people. I'm not sure Chris would let his little sister get involved in such dangerous work either. He values his partners a TON and I'm sure his sister is even more valuable to him, and he wouldn't want guilt regarding Claire to be carried as it was for Jill's supposed death. Sherry was a call I didn't expect Capcom to make since they hate bringing in classic characters. You know how much I'd kill for some news or appearances by Barry, Rebecca, hell even Billy ffs?