Idk about that one....

Personally, speaking mechanics-wise, I personally do think the dungeons at our current level cap are generally a little more difficult. At least in their current form.

From my experience, the only time I can recall anyone dying on a non-Endwalker dungeon was during Snowcloak with Fenrir, and in a lot of cases I chalk this up to their color scheme not being great.

I would probably say the dungeons I've experience most people die on (or in many cases even wipe on):
- Grand Cosmos final boss
- Paglth'an
- Vanaspati final boss
- Ktisis Hyperboreia final boss. -- In fact, this dungeon I almost always see KOs. It's a regular occurrence
- Dead Ends (first and second boss) - This one generally I think is one of the hardest dungeons. Simply because there are instances where mechanics will outright KO you. Most dungeons can just eat AoEs all day long without issue.

Personally, I am fine with the current difficulty of dungeons, granted, I think the mechanics should be somewhat threatening to fail, generally. Just so it doesn't develop a bad habit in thinking that you can just ignore AoEs.