obviously this mom already felt guilty about having her son go to a daycare, any daycare for that matter.
I went through the same thing with my kids, they HATED having a daycare here.. they are a bit older now and it helps.
Hang in there, things will get better.
As for this family, believe me when I say if it wasn't this that made her go , it would have been something else. Children, including ours are entitled to their opinions.
I say you dodged a bullet with this one lol