First off, I don't think that she'd react all that well to the means by which she'd be forced away from the Pattermanse in the first place. After all, she only decided on sending them away the day before Lawrence and the Enjos left because she was at her wits' end. She would not be thrilled to be told that she cannot, despite her hope otherwise, simply dump her problem in someone else's lap without paying a penalty so being told point blank by the man I call Bob that he's sick of people like her sending their discipline problems his way without having the decency to warn him in advance about someone who's going to make life miserable for the other campers so that's why people who do what she did kind of have to come along for the ride so she doesn't get sued for his damages. What's the fun of packing her kids off somewhere to forget about them if that isn't an option.
As if this didn't anger her enough, having That Man come along every day breathing down her neck about the stupid stunts Mike gets into and how they're somehow her fault for raising him wrong is not something she'd react well to. She very much needs to not have people act like her mother and tell her that she can't duck a problem or wish it away by blaming television or Gordon Mayes so being told that his being a pliable goof is her doing is going to go as well as his suddenly developing an interest in some girl she makes into a threat because she was a friendless, tongue-tied wallflower throwing herself at someone she didn't stand a chance with at his age.