I wouldn't necessarily be opposed to this when we get new zones or something like that, but my main concern is as follows...
The only example I can give is FFXI, since I never had the opportunity to play 1.XX, yeah I remember how exciting it was being a fresh player in XI and how I would try my best pre-20 to make it to Jeuno just to see if I could avoid the aggro and make it successfully to get to where my friends already were. But eventually in XI they made it rather easy to get around to so many different zones, purposefully avoiding many of the dangerous areas in zones, we got Outpost warps, tele/warp rings, tele/warp scrolls, Recall spells, ability to warp/tele others, Runic portals, etc.
Eventually if they were to implement areas like this, especially if on the other side of that area is a zone/outpost you need to get to for a mission/quest, they'll just more than likely give us some fast way of getting there w/o having to go through all of that aggro. Players will take the easiest path to get to an area, without having to fight their way to their intended goal. If there is an aetheryte, or some kind of new warp/teleport people will use it. Just my 2 gil on the matter.
