EOS's housing system technically can't be achieved by FF14 or WoW due to the major difference of size of player base.
Blizzard for one was much larger as corporation and more advanced in technology choose Garrison to compromise and never touch it again.
Taking FF14's current player population, the more ideal solution is a sandbox instanced like FC room and apartment in which it would makes more sense to improve on these two features instead of asking EOS style that is technically impossible.