Never meet your heroes. Those titles really mean very little other than the person's character has been in the room when the fight was cleared. It's not just that people buy the title for exorbitant amounts of money, it's also that it's not like Ultimate fights are insurmountable. If you can land yourself in a dedicated static that practices the prog 4~ or so times a week for 4~5 months, you'll usually be able to clear at least one of the Ultimates. This doesn't mean they're good at tank or healer or anything outside of the job they cleared Ultimate on, honestly.
Secondly, given the nature of the raiding playerbase with 3rd party tools, it's not uncommon for at least one person in an Ultimate group to be cheating via having 3rd party that show them telegraphs that the rest of us don't have, ACT triggers to call mechanics before tells appear on screen, and all that other stuff that gets rationalized away as being necessary for fairness vs. BS mechs. If there's even one cheater in an Ultimate group and they share their 3rd party data with the rest... well you can sort of imagine why that does not exactly translate to a higher skill plateau.
But all of that aside, even the legit clearing raiders are still just people. A lot of them are teenagers and early 20s. They're bound to be wild haha