I think that she should play high school ball. Louuuuuu is right in that there will be a red flag, no question. On top of that there is no other alternative at this time-inthis area to high school ball that involves softball. Sure she could run track or play ******** but those will only marginal choices. She will learn a lot even on a poor team about resiliency, commitment, work ethic and being a good teammate. She could still see her private instructors and keep improving.
When she gets to college and gets a fine coach of her choosing, playing on a fine team, she will certainly appreciate her situation. My dd played high school ball and didn't invite her high school coach to her signing. She eventually pitched every inning of every game in her senior year and did not receive a single accolade, but she didn't expect any. She used his lack of support to motivate her, she used the team experience that she had in high school to help resolve and head off issues on her college team, she has become a leader on in college mainly through hard lessons learned in high school. She has taken that experience and built on it making All-Confernece her sophomore year.
Negative lessons are as important and maybe more important (and what you do with them) in your dd's life. Play high school ball, s--k it up.