Yeah this is only for the avatar character, otherwise I think it would be pretty bad.
I agree but maybe it could work if the options were more limited than your average CRPG, and the support count for the avatar was limited.
Good point, I hadn't really thought of that. Maybe they could just make the avatar a plain tactician for the lord of the game and give them little to no main story interaction like Mark? I think an idea for that would be flavor text responses that don't affect the main story but do show off your personality a bit. At most you would be able to initiate what branch of the story you want to do if they go that route again.