You guys are coming up with a lot more info than I am from the OP's note. She invited kids to a birthday party. She stated she got permission. What's had to believe about that? Especially in the year of a million dreams.
So many people have stated that they wouldn't be happy about this. Well, believe it or not, Disney does have such goings on LOL. They do give guests permission to do things out of the ordinary and against the "rules" (note..these are their rules..and they can break them at will), just like any other hotel.Now we have the kids being bused to BB and being let in free and even that can cause people to be upset..and it's not even happening.

This is very entertaining.
I wonder how people handled the pets in the rooms at the Deluxes during the hurricanes. Imagine that..no pets allowed and they slept in the rooms! And Disney gave them permission..even though the rules say no. And to top it off..the owners were from the campground! They let campground people stay and swim in the deluxes..and they didn't charge them.
Yep, Disney owns the place and they get to decide on what they will allow. The OP said the person had permission. So, unless someone has proof she doesn't, I'll just have to believe it. I'm sure there will now be some Disers parked right there ready to jump on the first person they see with a pile of kids, even if Disney did ok this. Bet the OP wishes she'd never posted. I'm sure she doesn't want this gal to have trouble.