It seems to me that the AMA set up the turbine rules and the requirements to get the Wavier because they want the jet flyers to take it seriously. Apparently, many do not. It could be argued that this cavalier attitude towards the established rules is as bad as some of the irresponsible behavior shown by some of the Drone pilots that have gotten so much press lately.
Keep this in mind: Failure to follow the Turbine Wavier guidelines will VOID any coverage by the AMA insurance plan. You will be putting the personal assets of the pilot and likely everyone else there when it happens in jeopardy. I worked for several major insurance carriers and they follow the letter of the contract when claims are involved. Failure to follow fire protection rules will result in a denied claim, period.