This build is very outdated at the moment, of course thanks for all the great work.
Demonic builds bring by far higher dps and way less (forced) movement needs and downtime due to that. Having to fel rush + vengeful + felblade for a fully buffed chaos strike/blade dance session would be still hard and dangerous in this content but assuming it outdpsed demonic I'd try to make it work (still would have downtime or would need to be swapped in a bunch of encounters), the problem is that it doesn't. The much simpler demonic s(h)its on it easily.