Not a non sequitur at all. You wrote "you're assuming far more agility in the OS choice than is realistic in the market" which was a point to support your case

Not a non sequitur at all. You wrote "you're assuming far more agility in the OS choice than is realistic in the market" which was a point to support your case about NVRAM. I was merely stating that point was weak because, realistically, the agility in OS choice is increasing within the market. I actually wrote in defense of the traditional filesystem model in another post on this thread. Just because I don't agree with your reasoning doesn't mean I don't agree with your conclusion.