Looks to me that the guy who crashed tried to pass the other guy but the car in front tried to block but was too late and bumped into the side causing the guy fishtail and lose control.
I'd call that a world champion who knows when it is best to avoid contact with a cheating bastard making a dive bomb rather than a legitimate pass. We all know what Schumacher would do and did put in the position of the outside car...
It's a perfectly fair pass into the hairpin at Estoril. Door open, placed car in it. Hill knew the jig was up early on and did the sensible thing rather than the childish turn-in early and cry about getting hit.