According to the article, the risk is associated with operating the grill with the grill door shut.....akin to running the car in your garage with the garage door closed. It's due to customer stupidity rather than poor design.
Does this mean that all other gas-grills are ok to be run with door shut?
I've just fiited my new kitchen with amongst items a Zanussi oven. I had a letter from the manufacturers stating their was a potential problem like this one. I had to check the serial no. to see if mine was affected - which it wasn't.
But it leads me to think that whilst one manufacturer gets caught out the others are quickly remedying the same situation which exists on their own models.
Like you say Ivan user at fault rather than oven