This sentence from the article, is an effective summary.
Most people are influenced by the dominant tastes and fashion sensibilities of their generation, class, and ethnic group, and when you remove those factors from the equation, an exact, universal definition of “ugliness” becomes almost impossible to pin down.
In other words, "who knows?" But I suppose it is useful to remember tastes are not unique to me and that prevailing attitudes may influence me more than I realize. Sometimes I think my tastes are unique; I seem to enjoy IKEA / Apple Store modernism (?) more than my immediate circle of friends, and it is quite a bit different than what I grew up with. But I'm not alone in my appreciation of those things, or there wouldn't be IKEA stores and Apple Stores.
@nixiebunny , my alma matter had a few buildings like that too, with gratuitous cantilevering and exposed spray insulation and ductwork that looked like a mistake. On the other hand I've seen the same style done very well, and I'm not sure what makes it work in some cases but not in others.