A lot of people seem to try to make this seem like a norm or something more acceptable, but the dev stance is pretty obvious:

"If the presumption is that this content will be tackled and cleared with the use of third-party tools, then any reason to develop high-difficulty battle content seems to be lost."

The issue overall is very obviously more in-depth than just "tools bad". However, I think most people can also agree that there's a pretty big difference between tools people use for accessibility, such as for disabilities or colorblindness- versus tools used for cheating- providing real-time advantages over others in gameplay instances.

Like I've said, I don't understand opting to do the hardest content this game has to offer and then go far out of your way to make it easier for yourself. It diminishes the accomplishment. At that point it seems like said people do it solely for the bragging rights, and for none of the challenge. In which case I feel that cycle becoming relatively ironic because as this sort of cheating behavior becomes more common-knowledge to outsiders, people won't look at look at those who've cleared ultimates with the 'acclaim' people who use cheats to clear probably want from others. Instead, outsiders will simply begin to think "that person probably cheated."