If it's robust, you can slap this type of drive train into any vechile so there's commonality between trucks, jeeps (really fast ones) and tanks. The down side could be EMP protection but someone's taking a gamble that the T-guys WMD don't include that in the bag of tricks...
The common chassis automotive test rig (It had electric drive)was no simplification of the drive train. The mechanical parts worked ok, it was the damn software that kept sidelining the vehicle.