Why is that "detailed explanation" good enough? Why are you so quick to accept the alleged irrelevance of your opinion at face value? And what's an "mfg?" Manufacturer?
This is a list of Gerstlauer Sky Flies currently in operation, the same ride type and manufacturer as Dragon Racer's Rally at Epic Universe.
https://coasterpedia.net/wiki/Sky_Fly_(Gerstlauer_product)
How many of these rides are now operating under the same new policy as Universal's? And for any that aren't, why not? If it's supposedly the manufacturer's criteria, then it's only logical that it be applied across the board to all of their rides of the same type, yes? If Universal and the manufacturer have made the correct decision, what good reason could any of these other parks possibly have not to comply?