Actually, wasn't this interview done in January before the whole scandal with Jon hit? So you think Jon
should be cheating then? He should be enjoying the benefits of that, as you say? I don't think that's healthy. We have no idea what his issues are apart from being immature and a tad spineless. Is it because you think Kate treats him poorly that he should be cheating on her? I'm a little confused.
Mady is a bit of a drama queen but why do you think that is? I truly believe it's because she quickly took a back seat to the sextuplets when they were born. I see her dramatic behavior as a way to say that she is unhappy and needs attention. That would concern me as a Mom. I think your example of your own daughter is different. It seems like Mady tends to get attention only when she's acting out. She's been allowed to continue in this bad pattern and Kate usually rolls her eyes or makes snarky comments about it during the interview portion of their show. How nice that Mady will have a visual record of her behavior and Kate's thoughts on how she acted.
Again, the issue wasn't so much that Mady asked for water and was refused. It was Kate's response. She heard Mady's request, got water for herself and then set it aside knowing Mady was thirsty. All because they were going to be interviewed.

I'm sure Mady's answer to the question
'Do you think your Mom is a good Mom' was a nice little jab to show her displeasure at Kate's insensitivity. That's my take on it anyway.