Hard to tell from the video, but it looks like the hunter also had focus fire and weapon proc buff. The rogue used adrenaline rush and vanish (free 5pt combo evisc crit) during kidney, so he probably had red buff for the last 2 seconds of the stun as well. I wouldn't expect anyone to live against a team that pops every offensive cooldown without their team using a defensive cooldown of their own, regardless of whether eternal resolve is bugged
This was what I was attempting to point out. I'm fairly confident that no bug with the glyph here or not this situation would be the same. You can not live and should not live all of those ability's from two dps in the dead center of the map and getting no healing outside of long duration short cool down/gcd hots from a druid and no peels, kiting, porting, lining, fearing, trinketing, etc just raid dummy mode for all of it.
(It's worth nothing the hunter also had his 2 minute on use cool down stacked with his weapon proc and focus fire, while the rogue had yellow buff, proc trinket, AR, vanish, kidney and weapon proc active.)