Update: A helpful good soul ported me in! Hope Anet fixes the event though.
More clear update: I have completed Mawdrey. Someone already ported me in. The event was still bugged days after I made this thread, however. Thank you SO MUCH to all the mesmers who have whispered me, but I no longer need help! Also Thank you Jeffrey Vaughn for replying and looking into the bugged event!
I'm currently stuck on this because I physically can't get into Font of Rhand for the water... The meta event to access the mini-dungeon seems to be bugged. Flame Legion Battles is just stuck on "Rankar Harrownight is uniting his warband for a counter assault on the Flame Legion." The events listed on the wiki never show up. There's no way to progress.
I'm worried that I'll never be able to complete Mawdrey because there are so many items needed that are locked behind very old very specific events that might be bugged and I'm not sure Anet is even trying to fix these old events. There's barely anyone playing these areas of the game anymore. Is this a lost cause? Is there any way of breaking into the mini-dungeon using a mount or something? Does someone happen to have a mesmer parked in there (NA) that could portal me in?