^^ I know you said 'most' and that you added a disclaimer that it comes from your bitterness based on personal experiences, but I think there's something problematic in thinking that anyone in academia/research with a focus on fashion is only doing that because they are mediocre, failed to make it in fashion, sought validation by pursuing further education and because the fashion industry was too exclusive to let them in. Someone like Pierre Bourdieu, who taught in schools and clearly never made a single career move that suggested he wanted to be a fashion designer of all things (lol), has contributed way more to understanding key concepts fashion's survival depends on than the technical and social impact most (if not all) living designers will ever have.
Not long ago (about a week or so?) I read someone in the Designers area saying something about how a dress code had nothing to do with misogyny, 'it was just fashionable'. Personally, in my short stint in fashion school (which had little to do with fashion design and I quickly learned was a gigantic mistake and exited TFO), that was the default cognitive process of my peers, fashion just happens, way more spontaneous than a natural disaster, it's like fashion just.. blooms and floats above political events, development stages, a socioeconomic context, zero relation with each society or traditions or remotely affected by class or the roles we assign with different level of force to different groups of people. Some things are either fashionable or they're not, desirable or luxurious, the 'moment', iconic, hot.
That disdain towards education and critical thinking (which is what theory stimulates) brings us to where we are now, 'design' that could hardly compete with other creative fields in terms of output, innovation and substance. People don't know how to question, critically think, nurture their curiosity through rigorous research and study, even fashion history seems so dull when all you want is to make a hot dress that maybe Natasha Poly can open the show of your dreams in. That is the pathetic level of true, unadulterated mediocrity predominating in fashion these days. Fashion designers with nothing to say, who next to musicians, architects, painters and industrial designers, are always the last to find out about a movement and by far the least capable of capturing it without making it so cringe they practically kill it just by laying their eyes on it.
Even the idea of fashion designers being socially 'comprehensive' to mingle with everything from outcasts, the politically subversive, critics, experimental musicians, painters, philosophers to the socialites and celebrities is unheard of anymore, they're down with the illiterate influencers, the instagram stars, party promoters, the celebrities, pop singers and reality show stars. That's what they can handle, they're unable to.. expand, let alone be curious enough to dive with their creativity into the unknown and see what comes out of it. They just dream of one day heading fashion's McDonalds (aka. Givenchy, Chanel, Dior) and hanging out with Kourtney Kardashian.
There should be a balance with technical knowledge and theory. You don't want someone who can't sew to save his/her life but you're also not just educating a seamstress or the fashion equivalent of a construction worker, and certainly not 'exclusively' educating fashion designers the way studying architecture doesn't necessarily mean you will work as an architect.. plenty of architects working in industrial design, fashion, art, so fashion design should be strong enough as an academic foundation to prepare students to do more than just fashion, informed by a fashion background, should they decide to pursue opportunities elsewhere.