Binding Coil of Bahamut Discussion

[verily]

I'm pretty sure the stun for dreadknights is working as intended.
If you don't down a Dreadknight, Twintania stuns the person until the NEXT Dreadknight comes out, which you must kill to release said person.

It happened to us many times before our kill and only happens when you let someone die to a dreadknight

Sounds like you've never encountered the permastun, then. Rather than telling other people they're wrong, you should instead consider yourself lucky.