Its true. if this is indeed a bug then turn it into a feature! its a load of fun! if they are really worried about greefing then get rid of needing to go to the doors to leave. just make it a button like when your on a station.
Agreed! I also like the idea of giving an option to join the instance as PvP enabled or not when someone invites you to their bridge and an extra warning if you do choose to flag. It is a very fun bug when it isn't being abused, it really should stay.