That's a good habit - however we don't know in this video if the SUV that got flipped over was braking suddenly, which can also cause collision without the rear

That's a good habit - however we don't know in this video if the SUV that got flipped over was braking suddenly, which can also cause collision without the rear car's anticipation (e.g. the rear car driver might be checking the right lane right before passing on the right etc. and missed that information for a split of a second right before collision.)