That's great and all, but people aren't just buying Titan HM because it's too hard for them, people are also buying it because the DF pug ragequitters make it nearly impossible for all of a group's party members to learn the fight. Instead, they ragequit after the 2nd or 3rd wipe and just pull the DF slot machine handle again and treat the people they're grouped with like NPCs.
If any of the groups I'd gotten into for Titan HM had actually stuck it out for the whole time limit, I'm fairly sure I could have actually experienced Phase 5 without having paid to see it. People buying Titan HM runs may be the 'cause' of people who relics who don't know what they're doing, but it isn't everyone who's paying for the run (even the OP pulled a percentage out of nowhere, suggesting then that there's also a percentage that paid but knew what they were doing, even well enough to survive the rest of the fight on their first time in phase 5), and people paying for Titan HM runs in and of itself is also just a symptom caused by something else.