I understand where you are coming from, truth be told, I've considered this as a potential issue as well. Lets say this feature gets added in the game in the future, I'm sure SE will design the future contents to compliment this feature, and old contents, quoting you: has been nerfed anyways.

And player peer pressuring other players, well aren't they already doing it anyways? I mean you are not welcome to DD grind unless you are a bard/black mage. To pug REX/TEX/GEX/MEX/IEX/LEX/SEX(wow lol)/Coil you need clear experience.

But the flip side of that coin is there's tons of FC/players out there who's way more chilled and helpful, who's more opened to enjoy the game rather than treating it like a chore/job. And like I said, just an optional feature, elites most likely won't bother with it anyways, but people who uses it will probably enjoy it. Its just for fun, not to be an essential mechanic.