I have to agree with Jared and Ryan.
Given their typical audience, the authors did the best one can expect. Too hard-core and no one will listen.
To get their audience to move in the UL direction requires patience and a soft touch, as fears of failed equipment, cold, safety, etc. are foremost in the minds of their readers. It takes time to accept that the lighter stuff works, is safe, and lasts if taken care of.