Easier than what, though? The average difficulty of current-day dungeons is one that expects considerably more of the player than even the pre-Duty Support versions of ARR and HW dungeons. I don't think that's really even a matter of opinion, aside from some nitpicking about whether clearer telegraphs offsets higher mechanical difficulty. (If you want to argue that some of those dungeons took an unfair beating in the Duty Support transition, that's a fair - but different - argument.)

If Yoshi-P disagrees (and that's taking this claim on faith because I really don't care to go research it), well, he's entitled to, but I'm chalking that one up to another case of producers and directors saying things that don't mesh with reality. He ain't the one designing the dungeons, after all.