The whole point was to force you to explore the zone on foot, get to know the landscape and the layout, before you got the freedom to just fly over it and ignore it. Trust me, it seems like you leave that zone as soon as you unlock flight, but you'll be going back way more than you would expect for MSQ, for hunts, and for other tasks.
They finally gave us puzzle-lovers a toy to play with and you want them to take it away.