Nearly no GA aircraft are provided with an approved Minimum Equipment List (MEL). I know only a few without it and usually it is part of the POH. Where comes the idea for this statement from? Never looked in the POH? For example, the most prominent GA plane C172 has it as Part 5 in the POH. Or did I miss something in the discussion?
Regarding the trend towards fully comprehensive coverage for all situations in life - why? If you protect everything, or nearly everything, you provoke situations where you have to deal with nasty things otherwise statistically rare. If there is a harness, you survive more accidents, yes, but you will also survive much more severe crashes with heavier injuries, thus suffering heavier recovery situations and more likely things which will be unrecoverable. Life by all means and in all circumstances? No, not for me. If there is a serious crash and my odds are to die or to survive as being human vegetable later on, I choose to die in honor and dignity instead.