Loving Bahamut and SMN changes in general this expansion, but I can't help but feel like requiring 2 trances to summon Bahamut feels unnecessary and off, I'd be fine with them limiting ahk morn to once per summon in exchange for being able to summon him after every trance.
It works like this in pvp and it feels natural and I don't think it would break anything for it to work like this in pve too.