I never (or at least don't think I ever) said that Disney wasn't partially at fault. What I do not agree with is blaming Disney 100% and absolving the parents of their responsibility in this tragedy.
Like I said earlier, where I grew up "No Swimming" means no going into the water. No wading. Not even a toe. Not even a pinky finger. Maybe it means something else in other parts of the US. I think that link to the lady is very telling, where she admitted to ignoring the signs. She mentioned the signs yet still allowed her child into the water.
You wouldn't think Disney would need extra signs, but I guess in this day and age of dodging responsibility, especially by parents, and our sue happy society, you need to be extra careful.