It was the last corner of the last lap - hugging the wall damages your car but because he didn't actually need to tap the brakes he just kept on going, round the wall faster than the others.
The real answer is it only makes for good entertainment once, so it gets banned immediately.
If it had a real potential to spice the game (like allowing foot hits in volleyball) it would be integrated in the rules with some limitation (for instance you can only do it if you’re way behind)
I considered this first. But I imagine the camber change would ruin the insides of the tires so fast that it wouldn't be worth the wall rolling benefits...
Perhaps a better idea would be some kind of aerodynamic change which would result in a trapped pressure area on the right side when it is close to the wall. Maybe some kind of concave side.
I know you're joking, but Nascar actually uses some cool tech [1] to make a 3D model of each car on-site to ensure they're in spec with regulations for size, aero, etc... Here [2] it is in action at the last Daytona 500
That was my first thought, but that whole wall should be able to sustain a full on impact from multiple cars in a wreck if there are loose panels or gates it is already a serious failure.
Not to say it couldn’t happen, just that it’s reasonable to assume the wall is designed to support more force than this.