Something other than focusing 100% on driving, a thing most of us can sat "me too" but we just lucked out, i just venture to blame the popular social media / phone.
I stopped using my phone while driving a long long time ago actually in the 90ties when i was a pretty bad driver, and i do my best to not operate the stereo as i once almost did what the guy in OP video do, i was just lucky i had 3 other people in the car to yell out, and the driving skill to save a hairy situation.
BUT ! it was the last time i had people in the car with me, not only that day but i was a pretty dangerous idiot drive in the early - mid 90ties.
Today i dont even like taking a hands free call, so the fact the bluetooth on my head unit dont work dont bother me all that much, plus the fact i will have to drive around 1 - 200 hours at least before i am so unlucky to get a call while driving, due to the little number of people having my number and the little driving i do.