There are far too many situations where crafted gear is superior to the highest iLvl gear. From the mouths of the devs themselves, crafted gear is meant to be "catch up" gear. Use it as it comes and it's equivalent to last tier's raid gear. Put any materia in it and it's now better than last tier's raid gear. Any situation where the fully melded piece actually exceeds the highest iLvl is a mistake. Take a look around and witness all of the BiS builds which consist of crafted gear for over half of the pieces. Then, wonder how much more people would want to stuff in if VIT caps weren't an issue. It's undermining the value of raiding, and if it goes too far a lot of people will stop raiding altogether.
EoS spamming Embrace while under Cleric Stance should be roughly equal to Regen. They're quite equal here.
I'm not just talking about Two Tanking in FCOB; I'm talking about two tanking everywhere. If a fight was ever designed to have two tanks, it should be literally impossible to circumvent that design. The Tank population is low enough without people deliberately excluding a slot normally reserved for them.
People might enjoy trash if it was actually fun to fight. But, then it wouldn't be called trash, would it?
Overgeared or not, it still shows how stupid the "fluff fluff fluff BUSTER! fluff fluff fluff" design is. Just pop into the Tank Stance for one hit and then carry on? We as players need something new to play with here.
I was more thinking of "what is the healer's ability to heal while they're in Cleric Stance?" angle. Scholar has their fairy in their full glory. WHM can Regen before switching stance and gain a bonus by Divine Sealing it. Either way, SCH has the stronger healing in Cleric Stance.
It's not exactly that I'm against the aggressive tank as a whole. I'm against the flaws in the game that its extreme viability has revealed, as well as the mistakes that let it exist in the first place. Go ahead and look at my lodestone and you'll see that I'm using pentamelded i110 on my Tanks. If it works, it's a disservice to one's party not to try and be the best one can be. I'm just hoping for the day that SE wakes up, realizes they screwed up, and goes to bring jobs to parity statwise, whether it be by bringing Tanks down to the level of everyone else or raising the others up. Either one should solve the issue when proper encounter tuning is attached to it.
Every job has a BiS sitting around somewhere that heavily utilizes crafted gear, and it's not just the accessories. This problem has been getting worse every single tier. As I said above, crafted gear is meant to be used to catch up. It was never supposed to be as powerful as it is and devs are seriously considering the balance of it right now.
Regarding your solution, do you mean VIT on literally all accessories or just put both STR and VIT on tanking accessories. If it's the first, then we'd just need bosses to do more raidwide damage to compensate for a partywide increase in health. If it's the second, then they'd probably need to be class locked to Tanks so that MNKs and DRGs don't start using them. Either way, wouldn't it greatly invalidate the purpose of crafted accessories anyway?
After all of this mucking with the meta, the only way most Tanks nowadays would willingly stack a defensive stat is if it were actually necessary to survive a given battle. Given the way that secondaries currently work right now(they seem deliberately designed to not make too much of a difference just as long as you aren't egregiously wasting them on Accuracy or something), something like that seems unlikely.