Flaws of omission are always less problematic than flaws of commission. Classic case in point: it is much easier to overlook some lacking extension in the bass than to listen through even just slightly boomy bass.
Al, hate to disagree with you, but this depends on one's perception. One man's flaw's of omission are another man's flaws of commission. Just look at the polarized reaction to Magico Q5/ q7. One guy thinks it's the most pure thing in the world because it sounds just like unamplified instruments in their imagination, while another guy listening to the same record would rather hang himself from the chandelier if he had to listen to it for more than 3 minutes...
Subjective perceptions are formed through our lifetimes, through years of conditioning, not unlike other tastes... you don't have to teach kids to like sugar and candies... then they progress to things like hot dogs with (sweetening) ketchup, then when kids are 7 or 8, foodies have a real bar mitzvah-type celebration when a kid "graduates" to having a hot dog with other stuff like relish, pickle, mustard, hot pepper, etc.... and that old hot dog with ketchup is just plain boring... ditto for bitter-tasting alcohol...
As a recent unfortunate example, remember a recent fight between a couple of drunken guys, "Great" Peter Breuninger and "Sterile" Jon Valin over whether their favorite turntable sounds more real to them in their imagination.... Thank GOD those guys didn't have knives or other weapons on them... yet, speaking cynically, this type of incident would have brought a lot of publicity and "fresh blood" to our hobby