I completely agree that it’s inappropriate to criticize or complain to parents of a talented gymnast. As a parent of a gymnast whose gym moves kids up very slowly, I’ve seen that happen several times myself and it can be frustrating.
We’re in a league with mandatory score outs and sometimes kids are not moved up after they achieve the move-up score. Other parents complain to the parents of those gymnasts. I totally get the frustration of the parents who complain, although, to be fair, sometimes the parents of the kids who score out are not always aware of the rule. So when my DD scored the mandatory move-up score, I insisted that she be moved up to the next level even though she didn’t have all the required skills for the new level. My DD wanted the challenge and both of us wanted to follow the rules.
While I know that USAG doesn’t have mandatory move-up scores, I think I might wonder if my kid was in the right level if she scored very high (eg, >38) in her first meet at that level, regardless of the comments of the other parents or the number of hours she trains. I think I might be concerned that she wasn’t being sufficiently challenged. And while I know that gymnastics will never be fair, I would worry about the perceived fairness of this particular situation.