Also, I'd be surprised if ALL "people who study [this] subject and dedicate their lives to studying and perfecting their understanding" would share the same preference.
No, but I'll trust their opinion on building design and urban planning over yours the same way I wouldn't trust you to do brain surgery or landing an airliner. I am a skilled pilot in simulators, but I still wouldn't trust myself to land a real plane.
Fashion. Taste. Informed by functional and economical requirements, materials, surroundings, urban planning, yes, but in the end, there's also an element of taste and subjective preference that can clump together in periods or zeitgeist forms or whatever you like to call it.
As taste and preference go, you are free to delegate yours to others without question, as you seem to be doing here so passionately. I don't find empty appeals to authority very convincing. But maybe I misunderstand what you're saying.
I'm willing to hold two concepts in my head: my own impression of the appearance of different examples of a certain architectural style (which, like all others, has better and worse ones); and the question why some people who know a lot more than me might see it differently than me. Their reasons and my reasons might both be valid, but mine would be far less interesting. Hence, my question.
Finally: You seem to think that I asked you to trust my opinion, or even to change yours. You might want to look into why you think that, because that's not at all what I did. I asked something entirely different.