I guess the question then boils down to - is it just the requester who needs the flags? or do all the raiders need to be able to zone into the raid instances.. As soon as we get to that point where someone has done the flagging group stuff - we can test this out.
The answer is only the requester. However that is only the first raid. It was always meant to be in katta but a dev moved the npc without notifying anyone. There is a hefty post on veteran forum about it. People have already cleared raid one very quickly... Two guilds one shotted it /shrug .. Flight canceled so i am sitting at airport... See you tomorrow