I wish I was surprised. Any kid born 9/1/2009 or > is 2028 appropriate. Why would a parent want a 13y/o playing pall ball against 11 y/o. That other forum is bananas. Apparently this kid has caused some pretty serious injuries. MadLax sounds like a bit of a nightmare.
Just read your kid’s Team snap and look at the ages. If this surprises you, then you’ve been hiding under a rock.