What a crappy thing to do.How you will be perceived will depend upon how you move forward from this point.
How any parent intervenes for their child depends a lot on the process and intent. For example, if a parent ask to talk to a coach and compares their child to others on the team, that, for me, is a no go. I won't talk about any players on a team with other parents. I ask that a meeting be set up with the AD. In that way, I have a witness as to what is said from both sides. I have been where you are and considered my dd to be an exceptional athlete.
I have told the story before about my dd and volleyball. My dd was awarded the underclass award for volleyball her freshman year. She dressed varsity. In her sophomore year and before they had played a volleyball match, she entered the gym with the trainer who had told her she needed a covering for a strawberry on her leg. She got that strawberry from playing a weekend softball tournament. The volleyball HC went off on her and compared her to a former player who went on to star on her D-I college softball team. The "punishment" was that my dd sat on the bench for the varsity for an entire year and never played one second. She was not allowed to play on the JV. The wife and I went to every game to support her. We didn't say a word to the coach who I worked with. I was a teacher and HC at the school. My dd cried after every game but never asked if she could quit. In a lot of ways, that year made my dd stronger though, to be honest, she also learned how to hate someone. The following year, she decided to play HS golf instead for me on my golf team and was offered several scholarships for golf. In the end, it worked out.
Our take on here in the school sotball program is that if you play another sport, then you're still getting extra practice at things like balance, coordination, hand/eye, strength. Well-rounded athletes make great softball players.