Honestly, I wouldn't chance it. From what folks have posted in this thread, you've seen that some people who want to be left alone are, and sometimes the servers don't know when to stop.
Even if the servers never tease anyone at your table, you're going to spend the entire meal worrying about whether/when they're going to start, and how your child will react. Your child may see children at other tables being picked on, and that may get them worrying that the same thing will happen to them. That's no way to spend a rather expensive meal. The food there is fine, but it's by no means a don't-miss culinary experience if you're not into the antics, and it's certainly not worth stressing yourself out over. There are plenty of other places of similar quality on property.
If you're staying at WL and like the kind of food WCC serves, just take the boat to FW and hit the Trails End buffet. It's probably cheaper, and stress-free.