I think what need to be put into perspective here is that Verstappens crash into Hamilton in Monza was actually a lot more dangerous than the incident between the two in Silverstone. Verstappen went in sideways into the barrier, this is the best possible angle one can crash at. Even 20 years ago Verstappen would have come out of that crash with little more than a scratch and I remember Michael Schumacher having a very similar incident in Copse at around the same speed in one of the free practice sessions many years ago and he went onto race the next day.

On the other hand, had the Monza crash occurred 4 seasons ago, it is almost certain it would have been fatal for Hamilton, or at the very best he would have ended up crippled for the remainder of his life.

I agree however that this is not relevant to the punishment but I think people seem to think just because it's 51G it's more critical, but that's not the case.