No, just no. There is ZERO reason to shove NPCs into the Mogstation as replacements for "bad DF healer/tank/dps". On top of that, if you have a problem with DF, then make a premade party with Party Finder, that is why it's there.

- Like others said they are eventually implementing a system to assist players. That are a part of the XIV universe.
- There is NO reason an NPC should be in raids, period. And if it's DF raiding, you are bound to get toxic people. You don't pay their sub. They don't pay yours. Screenshot and report if it's harassment.
- Lightning and Iroha are events. They are not canon to the Eorzea Story. They are there simply for fanservice reasons for the players to enjoy and to get neat glamour / minions as a vanity statement.
- Calcabrina and any other boss/mob in dungeons are fanservice, that SE has given us to be excited about. The same goes for the likes of Krile and other canon npcs in the universe, fanservice. There is too much of it already.