With the new limits, this fight is actually easier to solo tank & cover stuns...not to mention, the extra DPS forces phases to end sooner, making it so there is less to stun/pacify overall. You can use Shield Swipe on Ifrit to stop Eruption so that is meant to fill the gap on stun resists. He has an easy rotation to learn & you can choose to pacify if its up, shield bash when it's not. Bulwark is good to forcefully create a shield swipe if needed...just make sure to pop it early enough to get a blocked attack before eruption.


To be honest though, after they changed it, they nerfed damage from eruptions so if people are making an honest effort to dodge things, there should be little to no damage from them. So many things can go sideways as both MNK & DRG also have a stun move & there are many times that they use them on that fight without realizing what they are doing other than trying to maximize DPS potential. SE makes oh-so-many things immune to stuns & other moves that a lot of DPS just forget that there is actually a Primal you can stun...so I can't blame them at all. In all honesty, I would rather see people just plan to dodge attacks than take the lazy way & blame the OT who's only boring job in that fight is to stand there & mindlessly wait for the post-kickback eruption. Those are the kind of people who get carried through a Titan run.

Overall in your situation...since you were sticking with the old 2 tank paradigm, your only real fault, provided you know the rotation & were ready with bash when the time called, would be that you stunned plumes which wastes one of your stuns. The DRG, although he may have messed up your stuns, probably had good intentions. Such as: "I'm going to try & stun eruptions since they aren't getting stunned properly"...or: "I haz weapon, me kill things fast, ugh". Without knowing for sure, no way to know who was really at fault...but I wouldn't let it get to you. You should try putting together single tank runs when possible just to make it easier...& if you know a solid healer, a single healer can cover that fight just fine as well. 6 DPS is the way to go on all the HM primals whenever you have solid tanks & heals.