Today I saw the lone, negative #hosted review I've seen of the Universal Kids Resort, posted by Theme Park Insider.
https://www.themeparkinsider.com/flume/202606/12512/
This piece is interesting because it does confirm that Universal paid for flights and accomodations.
Guessing Theme Park Insider could be skating on thin ice with Universal now, though.
For what it is worth, even though I think the park doesn't look great, I believe it will likely find an audience given the very dense population of Dallas. I think adding more water park elements like Sesame Place in PA would be a cheap and easy improvement they could implement.