Dreadful but I am not suprised that HGVs are involved and found wanting. For some reason that stretch is notorious for bad driving by HGVs and I have long suspected that some of the Eastern European drivers are driving while over the limit.
An example which was filmed northbound M1 not far from where the incident took place:
https://youtu.be/qiWituAtodA
Car only reacted after the truck was mostly past...
Not brilliant, but equally, had the car driver been watching their mirrors, which is a sensible thing to be doing when queuing to leave a motorway, then they could have preempted the positioning of the lorry as it approached, thereby limiting the impact of the lorry drivers bullish action... ie moving to the left to avoid a conflict...
It could be suggested that the car driver is half asleep and pissed off because the lorry has prevented them from their intended course of carving a second lane where there is only one...
Two wrongs don't make a right, and let he who is without sin etc, spring to mind