Electric fan wiring??????

I understand the point of two separate systems for two separate fans.
Just seems kinda overkill, since one could easily bypass straight to the battery if needed.
The thermostatic temp switch in my system is rated at 30amp because it is designed to be the relay for the fan, but I didn't like that idea very much so I just wired it up so it triggers the other relay so way less draw/heat through it.
I have a single fan system so if mine goes down for some reason not to do with the fan itself, the battery is 6" away. (Snip, connect, done)

You guys are right though, as two separate power systems would be better for a multi fan system especially for someone elses car.