If you're basing your opinion on two games, that's too small of a sample to base it on. Coaches thought she played well enough to earn first team all-PAC12 this year in a very competitive conference. That has to mean something. From what I saw this season, she earned the recognition.
Impact on USC, time will tell. No different than last season where some assumed LSU's pick ups in the transfer portal was going to help them repeat. Like I said in a post on the "winning the portal" thread, those predictions don't carry a lot of weight. Too many unknowns when the season is several months away.