I feel your point is invalid. The whole thing is a liability issue and trying to guarantee their children, who did not choose to have a celebrity lifestyle, have the same kind of Disney experience the rest of us do.
As the pictures show, it's not like he was kept away from everyone, in fact it looks like they had a fairly normal vacation, but waiting in line and taking up a whole Jungle Cruise boat, while I don't know if he waited in any line or not, was done for the safety of him and other guests, and the enjoyment of all. Line waiting aside, you can't tell me that you'd honestly want to go on Jungle Cruise tour or any interactive experience like that, where more than half the time you're going to have fellow passengers gawking at or trying to talk to a celebrity would you? Also you have to worry about the crazies, and having a celebrity in an enclosed space with a ton of people is not a great idea.
Don't you think sending an assistant to wait would just cause more resentment?
Your example of the grocery store is a poor one to me. Grocery stores are places that are visited on a regular basis, and where a celebrity lives is bound to give them a much more relaxed atmosphere. For example, I live in a small town that has its share of major celebrities that either live here all the time or a good chunk of the year, but these celebrities are able to mostly come and go as they please from the places they go. Sure there's sort of star struck feeling by most, but they've just become citizens by and large, and are treated as such.
Theme parks are a foreign space, filled with people who are not as accustomed to seeing these stars in person, this can only lead to trouble.
