Its errilevent though as the Mazda is still legally at fault. No different to if I drive into the back of an uninsured car, dispite the fact legally they shouldn't have even been there my insurance company would still be liable to fix that vehicle in full, and payout required personal injury claims
How the car (don't assume its the same car or same driver, one of the videos in the last page or two show what appear to be the same car but with 2 different private plates iirc) has previously been driven vs how its driven at the time of collision are two different things though.
We've all been silly or stupid on the road at some point or another, doesn't me we're automatically to blame for any subsequent accident though.