I think the tint is a red herring.
Its a big piece of glass in a key torsional area. Glass doesnt flex much if at all. The M3 is one of the most rigid cars out there, but maybe not enough. Going over driveways at an angle may be enough body twist to stress and crack that glass.
I agree, but I don’t think high angle driveway is as bad as jacking up the car from one corner on the body. Which is why I never jack my car up that way on any car.