Since I know how Blizz likes to compromise… What if you took away the instant teleportation to the dungeon? Still give the option to group up with the dungeon finder but rather than forcing players to sift through “LFG tank/heal etc.” we just use it as a group finder. Then the group makes their way to the instance. You will still likely having someone summon people but still requires social interaction and helps reinforce the idea of putting effort into getting to the location as well as “seeing the physical location”.
Take away the pain of the group finding, keep the interaction of travel and investing some time with the group before it even starts.
It’s not perfect, and it will suck having to travel really far for those that want to teleport too, but I think a majority of the community would settle for a compromise to reduce the headache of group finding with still requiring the transportation.
Thoughts?