While I know funcom may have had some hangups with fast travel, I think for fairness and server integrity the Obelisks need to be bidirectional, they should take us back to the last Map Room we used as long as it still exist.
The issue is, at this point it seems since most people and clans want bidirectional travel, everyone seems to be building a Map Room near the Obelisk, but of course they want a base to secure it, from purge or whatever so now there are so many enormous bases near so many Obelisk, plus players often lock these Map Rooms a way (Map Rooms may be so large to deter that) so everyone and their brothers build one.
This just clutters the areas specifically made to be high traffic, beyond the three bases which are already near a particular Obelisk near me, there is now a base between me and it that is so enormous that I either have to climb it’s high walls to cross or walk all the way around which is a bit of a pain.
If the Obelisks were two way I don’t think people would feel Obligated to build Map Rooms near them and by extension bases near them, they’d know they could leave via Obelisk, and as such give more freedom to placing bases, i.e. place your base wherever you want and simply use your map room to get to an Obelisk and the Obelisk to get back…
but since they’re not, it makes these locations prime real estate so huge clans all build bases all in the same area near them taking up vast areas making it harder for solo players or newer players to traverse or compete since we all must use these area if we want to fast travel.
I think players should be encouraged to build wherever they want, lack of resources in certain areas already force players away from those areas, one way Obelisk further force players to those area and again away from those lacking areas.