Seems to be a shame as I had thought that this vehicle would also be nice to eventually be a self driving vehicle.
I guess 'non-blended' brakes means that when the regenerative brakes reach their max, that braking switches entirely to using the physical brakes? If so, I'm not really sure why that would be a good thing. If not, perhaps I just don't understand what blended brakes are.
Blended brakes means using both the motor (regen) and the physical brakes (as needed). Adding the capability for the car to activate the hydraulic system for the physical brakes add components, complexity, and cost. Regen alone might not be able to slow the car fast enough so the capability to use the physical brakes is necessary.
I would fully expect it to be at least an option in the future (along with automatic emergency braking). Automakers will be required to have automatic emergency braking standard on all cars sold in the US by 2022.