60 mph mamba brushless setup for e-maxx, would this work?

I would imagine that running two systems might come of age when you can run two brushless motors from the same controller.

I'm not saying that having two motors won't be powerful. I'm just saying that there are better ways of going fast. If you put two 8XL motors in an emaxx, I'll bet it'll pull shopping carts around all day long. No question that the brute power will be there. I thought we were talking about going fast.

What is the idea behind running the escs and batteries in parallel. Isn't that the same as running two independent systems, but with more wiring?