Except we're not teaching them mechanics.
We're trying to go against the conditioning they've received from day 1 since starting the game that it doesn't matter what they do as long as they're pressing buttons while at the same time trying to get them to do mechanics.
This is what we're dealing with:
If not worse
With that said Is there really such a need for such vitriol against mentors? Are you even a mentor? Some people just aren't ready for extreme and it has nothing to do with mentors.
I joined a 40 minutes in progress Leviathan EX just yesterday and we ran out the clock.
Not even 20% echo can help those people.
Sure you can clear most of them save Ramuh, The Great Hunt Ex(sometimes), and Sephirot but why are people so upset that some people just A. Aren't worth helping, B. Don't want help, or C. Aren't ready for the help being offered?
These people have never been challenged at all leading up the time they put themselves into the queue, they have next to no raid awareness, and don't even understand how to dps an add that appears infront of them unless specifically told and reminded to do so. If left to their own devices they would hit Ifrit while he was invincible until they wiped multiple times.
You can't help people who don't want to be helped, it goes both ways.