Who doesn't want to see their guildmates run over by a train?
This one doesn't look too bad, some target switching required to kill Firemenders and Man at Arms quickly, healing gets a little rough when the raid splits.
There's a couple of addons to make train avoidance easier:
Thogar Assist and Thogar Helper
I wonder if it would be better to save hero for the stacking to help push thru and for boosted healing could treat it as a soft enrage maybe idk.