This will kill people in wastelands so it does affect normal playing very much.
Typical scenario: You zone in wastes (a very large zone), look around and see 6 Hoverbots above you.
How it works so far: You zone back and seek another entry point.
Your idea: You're dead.
This is also what happens when zoning from OZ station to the Outzone, because of the Dragon Wrath Members often left near zone line. So above scenario applies for city sectors as well.
Mind that if you travel diagonally on a quad you also change zones very fast. If you zone in a corner, there is about 1s between zoning.