In-game View/Perspective

So I have been playing for almost two years now, and I've been wondering why not make it so that regardless of which nexus you start at, the perspective of the camera is always set to be on "bottom". I personally hate playing on "top" because of this. I like having the camera locked, but i cant if I start at the top because the camera view cuts off differently than when on bottom. And even when I dont lock the camera, it seems easier/better to move it from the bottom perspective than from the top.

Another way i could put it, is why not have it so that regardless if you start at the blue or purple nexus, the nexus is at the bottom left corner of the screen