Ability to invite someone while engaged

[Chione]

Really, I dont mind that as much as not being able to LEAVE party while the party is engaged. There shouldn't be a reason for that

This is especially ridiculous when the party member is clear across the world. I was getting weird cons on mobs in a leve, and realized my hubby was still in the party on his MRD even though he was standing around in Limsa city. He tried to leave the pt, and couldn't until I had defeated all the red named critters.

I wonder if its somehow connected to the way cons are calculated by party and not on individual vs mob. Maybe this should be changed so that the invites/disbands during battle can be addressed.