Very interesting reflections! I have this vague idea that in Morganland there are, well, let's call them "Sentimentalists" and "Rationalists", with probably everyone having a bit of each, but just more or less of one or the other depending on the individual and, perhaps, the topic.
Sentimentalists (which, now I think of it, is probably my own natural inclination, with a soupçon of Walter Mitty thrown in for good measure) are attracted to the emotional/artistic/nostalgic/quirky/evocative nature of the cars, whilst Rationalists are maybe "mechanical/engineering" types who are drawn to the engineering aspects, and the idea that a competent mechanic can actually work on, maybe even improve, a Morgan (here I'm really going out on a limb, since I'm simply not mechanical).
Against this background, I can, for instance see that CX lovers are Rationalists who see the newer models as simply better, mechanically speaking, and can't quite fathom how anyone could prefer a "worse" model, whilst trad lovers think that modernisation "misses the whole point of a Morgan" or something similar: both valid perspectives of course (and I love how, as has been mentioned earlier in this thread, for the vast majority of Morgan owners -- at least on this forum -- both types are united by a common enthusiasm for the marque and mutual respect for the preferences of the other). Perhaps these are two, occasionally competing, views of the world, and this explains why some have strongly held "opinions" that go beyond mere "preferences"?
(Sewin: a special thanks for your very helpful post on the history, it was really enlightening about the practical implications: I can certainly see why developments that affect the economics and practical reality of Morgan ownership can give rise to strongly held opinions!).