Why not integrate Jaguars with Diodes?

[KrazyCarl92]

Most people in the FRC who have experience with Jaguars know how frustratingly fragile they are. If you hook up the positive lead from the PDB to the V- and the negative lead from the PDB to the V+ on the Jag accidentally, the thing is busted, blown, and destroyed. So I have to wonder, why wouldn't they integrate a diode into the Jaguar's circuitry so that current would only pass through the one direction? Seems like that would be 10 cents to fix a problem rather than a $90 fix for having to purchase an entirely new Jaguar.

Not asking if this would be FIRST legal (obviously you couldn't modify the internal circuitry of a motor controller), but just asking if this is something that could be integrated to make the product more durable, maybe by a manufacturer in the future. I know I'd be willing to pay an extra $10 for a product that wouldn't break when someone on the team unknowingly swaps the black and red screws...