Problem with Dungeon finders is you not building a community within your own world. They you have issue with players ninja lotting your stuff because there really not in your world. If they kick you am sure you have to wait 30-1hour to join other dungeons. The kick option is there for when you do something bad or go afk. So if SE does this i sure they have to make i so you can';t join a dungeon soon you get kick.
Most JP wont kick you but there a 60% that you would if they find out your not jp. Top of that no one really talk when you doing a dungeon finder.
There pros and cons for this i think it should be added later not right of the bat. the reason i dislike it is what if i want to go on doing dungeon with someone i meet but he/she other server. this happen to me more time then i can count in wow :(
