This again appears to be the old backward approach to hazard prevention, and my old pet gripe.
Dealing with the effects of a problem and not focusing on the cause.
I have some old pieces of asbestos sheets. These belonged to my father. He was a plumber, and often repaired copper water lines. He used these sheets to prevent ignition of the wood framing members, when soldering the connections.
I used these recently, and noticed that on one side the temperature was very high. The other side would not melt butter.
Unfortunately there has not been a material created that compares to this degree of heat insulation, but I know an acceptable material using proper clearance can be used to make all fixtures safe, even to compensate for higher wattage lamps being installed.
I recently watched a hanging chandelier break into flames when first turned on, the first thing ignited was the UL label, the second was the "Made in China" decal.
