I very much doubt that people suddenly lose their ability to dodge nasties aimed at them by the time they reach Titan Hard, it's just that Ifrit and Garuda are by Titan's standards quite... Ahem, carryable. So the people who quite frankly never deserved to get past the first two Hard Primals are being carried by tanks and Meteors aplenty right into Titan's unforgiving bosom.

I mean, it's pretty amazing seeing Ifrit Hard after 2.1 now that every single Eruption can't be stunned. What was easily farmed back then now has as much of a success rate as Garuda through the Duty Finder (in my experience, at least). No guaranteed Meteor for the Infernal Nails reveals how poor the average DPS is and and a few Eruptions going through means half the group dying.