Seeing how free company are the guild system in FFXIV what the point of having summon a party if everyone going to do dungeon finder that just teleport inside a dungeon with random people with diff worlds?"Not if you doing endgame then you just do it with your free company/linkshell" Having a simple teleport system to teleport anyone to your area seem like a cheat and waste of the dev team to even make mounts or teleport crystal.
Sorry but my idea make the most sense you don't really need the teleport someone to your area when they can simple teleport to the crystal near the camp and get there within 1-4m if you watch the alpha video there a crystal in every area and you can reach anypoint in the map within a short amount of time.
The only teleport that make sense is free company/linkshell having perks not sure where you getting people would not party outside there group when no one would be doing that to start with. Remember we have dungeon finder where we can simple join any dungeon within 1sec everyone would be doing that vs finding a camp and partying seeing how yoshi-p said in 2.0 party camp would be that great vs other content they releasing for exp. I see more people standing around in city or there fav spot and joinin dungeon with random people around servers then looking for people on there own worlds.
Also the free company teleport is not for elitism is help out casual linkshell also that want to do dungeon with there own ls.
i just don't see SE adding a system where you can teleport anyone at any time at any spot what would be the point of teleport crystal / mount the only people who end up using it would be people who play by themselfs seem like a lot of time for the dev to make all that to end up making a teleport system that allow anyone to teleport anyone to any spot in the game i understand that you think having 3 people it the area would make it fair but i still think it a cheat system for people who don't want to simple teleport to teleport crystal A and walk 2m to the camp on mount it just save you 2-4m.
That just my opinion on this matter and i don't see SE adding a system like what the op is asking something like summon stone outside dungeon and such yes but not a stone you carry and can summon someone not if it's a perk for your free company/linkshell and you summon everyone that make more to sense to me.