Mixed opinion so far, I still think it's Madness. I think ultimatley only you can decide - you are always going to get a split decision on something like this.
I suppose some people would think walking around a busy theme park in intense heat is madness also, but many of us have done that in the past in the summer.
I do think it's positive that you are considering going just for Universal though especially as some of the best rides are to be found there.