I am very new to the recruiting process but there are two things I would add:
1.) Swim4school, a veteran swim parent on this board, recommends that swimmers who want to be recruited need to be aggressive and polite at the same time. She should continue communication with coaches and be proactive. AsleepAtTheWheel said this too. Don’t let her slip off the radar. You don’t want them to forget about her.
2.) A lower lever D1 school that S is looking at had two boys commit in April. I have read that major D1swim programs add one or two swimmers very late in the game, although some of those seem to be international students.
Good luck and I hope she recovers from her injury soon!