I agree completely. We eat out a lot at home, Disney and other vacation spots, though usually at more family-friendly restaurants. I honestly cannot think of a single occasion where a child ran around a restaurant with parents ignoring him. I've seen a very small number (maybe in 5% of restaurant outings) take off running, but mom or dad is right behind them, dealing with it and it doesn't happen again.
I have a BIL who really overreacts not just to kids in restaurants, but to just about anything that isn't perfect. If the waiter doesn't notice his iced tea is almost empty and have it refilled within 30 seconds, he *****es and moans about it. If someone turns away from the salad bar and sneezes into his shoulder, then picks up the dressing ladle with the other hand, he gets grossed out, tells the staff that the man sneezed in the dressing and asks them to replace it. And if a kid at a nearby table laughs loud enough for him to hear, he shoots dirty looks at that table for the rest of his meal.
That's not an unruly kid, a bad waiter, or a gross customer. That's all BIL, there. I feel sorry for him, because he can't just have a good time, he's too busy looking for things to be bothered by.
In general, I haven't noticed any more bad restaurant behavior from kids than I have from adults. So when people talk as if meals being "ruined" by kids are commonplace, I can't help but wonder if they are like my BIL.
Even so, I have absolutely no problem with Disney's making V&A's child-free, nor would I have a problem with them making a couple of other signature restaurants child-free, if that's what they feel will get them the most business. From a practical standpoint, I think the best way to do that would be to make certain restaurants child-free a couple of nights a week, rotating, so that there was at least one child-free choice (other than V&A's) each night of the week. For families who want to take their kids to those restaurants, or stay on their own time zone, there will always be at least one child-inclusive choice each night of the week as well.
That is completely irrelevent and really ridiculous. My mom and dad almost never went out to dinner without us kids, and never on vacation without us, yet they also stayed happily married, laughed together and held hands in public until the day my mother died.

And I won't try to judge myself here, but I'll tell you my brother is probably the single most responsible, polite, compassionate, caring, asset to society I have ever met in my life.