I don't think anyone prefers to see a loading screen when walking between zones. It's immersion breaking.
I get that ESO zones are way bigger than zones in other MMOs, and that it implements megaserver technology where each of us are just player X in instance Y of zone Z.
Cyrodiil is almost as large as all of each faction's zones and has a wide range of geographic features, yet you can just walk through it all seamlessly. Most of the faction zones are connected, so why not make transitions seamless between them?
There are some other MMOs that don't have loading sceens when walking between zones. Is it not possible for ESO to be like this as well?