It is possible she has a good child. She may feel she’s being “discriminated against” because of others of “her” group, IYW.
However, I think I would be more disappointed than anything else if I really liked the place. After all, the age thing changes - she can go back with him in a few years.
My children received many compliments on their good manners. Children under two, IMO, can be unpredictable. When my young children started fussing (even at a fast food restaurant), I’d leave with them. No one should have to listen to my kid fuss.