I agree the targeting system needs tweaking.
WHM threat seems to be really high but I'm getting better at managing it.
The new dismount when you attack,talk to a NPC or try to enter a town is just sill especially when entering town. I shouldn't have to get a prompt, wait for my guy to dismount just so I can then load into town.
Switching to 5 man may be tough, they'd have to retune all the group content to account for the extra dps and I'm sure there are many other things.
The in progress button is useless. Does anyone actually use that? The inability to kick someone is dumb enough but ya I agree, having a tank throw a hissy fit and leave screws the entire group, or having a dps that fails or a healer that fails ect.
The chocobo thing drives me nuts. I just stopped using it because inevitably I'd be questing away and queue for a dungeon then get the bird out for kicks and get removed from queue.