I love Eureka! Some of the nicest people there!
The xp loss is annoying thats why I never stay there after checking the player list and there’s barely anyone online.
You should be in a party even if you dont get xp, you’ll still level quite fast by doing fates, besides you can always leave the party and once a fate pops up, rejoin a party.
It’s just one of those contents where you have to talk with people a bit!