Speaking as a non-blaster, in all fairness, your post was very ambiguous in terms that it sounded like you were making a general statement about Ups and Downs.
The fact that many fatalities have been related to the fallacy of easy up/easy down -- generally speaking -- is sure to rankle the guy who has had to go fetch to bodies. (much like certain traffic maneuvers send me over the edge, because I have had to process the 'unsuccessful' results of such maneuvers)
Buy hey, I already gave my rant somewhere else as to how easily misunderstood these posts can bee
I stand by my casual observation that Muir has a few skills involved that has nothing to do with marathon dayhikes. I would prefer to advise the 'monkey see monkey do' for a non-climber attempting anything unrelated to putting one foot in front of the other type skills (I do not recall that the MR has any laybacks or simple chimnying required)