Lfg is one of the most annoying things on the map, furthermore, LA is already overspammed with Lfg cause the FotM and some players are furthermore searching in general for dungeons, not for one certain dungeon. So why not making two new areas:
FotM-Area, a perfect start point for FotM and searching for a group.
Dungeon Area, a place, where is an entrence(-asuraportal) to any dungeon, perfect for group search.
There could be also a new ? for travel, to HotM, each city and these both areas.
Remember the ship for traveling in GW1, also the Beach later added (I really wonder, why they do not use their best ideas for GW2).