kind of agree with you on exodus dungeon, but letting people mark would just cause people to mark near the champ spawns.

These are the only places I normally see other players. Yes it is a shame the facet is not used.

but asa far as exodus goes you only have a few options:

run like hell, help you do not get paralyzed

use a stealther to work your way in

get a group together to explorer fight your way there, this is actually quite fun as most players have never really been to ilshenar.