How is it overgearing? That's taking for granted that the ilevels listed is what you're actually supposed to run in, and not a hard lock on people who have no business being there. This is content made with the current end-game players in mind and it's clear SE tuned it to the sort of gear they're packing, the ilevel requirement is clearly not what the fight is tuned for just what is theoretically possible.

Mechanics wise the fight does not change at all even with everyone between 80-90, this isn't a game where you can gear stomp so cut it out with that nonsense. If you see someone complaining about the game being too easy feel free to chew them out but most people i know, people who actually do the hardest content, are quite happy with the challenges in this game and if you think they're cheapening it in their i90 gear then do what I said before. Put up with a video of yourself and 7 others at the minimum or you're all talk.

I actually, earnestly believe it's probably possible and would like to see someone do it. They would have my respect, but not people who can't do it but tell others to.