The cause is, at a minimum, reckless and inconsiderate driving by HGV
drivers (trying to get more out of the road than it can give in terms of
speed and capacity).

HGV's are limited to 56 mph mate

and?

How else do to two lorries crash into each other on a deserted motorway at
3 am?

Er, Driver fatigue? Mechanical failure? Tyre blowout?

phil