As long as you're maximizing mitigation, neither side is explicitly wrong. It's simply a difference of ideology and personal preference.
So, if you don't trust your healers (or your DPS to not take unnecessary damage and distract the healers), go with high endurance armorings.
If you don't trust your DPS because you hit hard enrages at 2%, get high main stat armorings.
If you trust everybody, but are pessimistic, go end.
If you trust everybody and an optimist, go main stat.
If you trust nobody well... think I'd lean toward endurance. Let's be frank, stacking main stat is more for tanks in high end, stable guilds. I don't think I'd recommend it to plebeians. I say that as a plebeian.