Let's be honest once the cross server PF is up it will replace how harder EX primals are ran the reason why it's dead in RF and was dead in DF as well is your almost always dealing with multiple new players who don't know the fight and even if you make progress your going to have to rinse and repeat this progress because time runs out.

I cleared Thordan a couple times in DF but that was because most of the party was premades never cleared with 8 random people.