First of all, I am sorry as it is very stressful. I presume she will keep her tennis up all summer, so she is very ready in the Fall. When she communicates with the coach again, it may make sense to ask for drill ideas or any thing he suggest for conditioning and reiterate her commitment to the team, the sport and the school.
I think many people do not know that teams may continue to cut - even recruited and supported athletes. My guess it is one of the questions that doesn’t get asked during the process and should.
It is a beyond stressful way to start off college. Wishing your daughter (and you) well.