For starters, that's the whole point of them because without them playing in melee range means you are forever exposed and never get to have an angle to approach while Ranged gets to keep angles of retreat.

They are meant for tactical play by repositioning yourself around them to avoid constant line of sight (i.e. using cover) - something both melee and ranged jobs get to abuse equally. If you feel like they are a hindrance rather than useful then you clearly aren't using them enough.

That or you are spoiled from Palaistra's and Cloud Nine's ridiculously open midpoints.