While I don't suggest or think some forum call to shelving vintage(style) saddles is necessary, I also have 0 use for them. I haven't used a Brooks, but I also don't want to allocate $150 to test if I like it.

There are tons of modern touches that people make to their bikes- lined brake and shift housing, brifters, SPD pedals, cushioned bar tape, riser stems, threadless converter stems, etc etc etc.
You certainly enjoy painting with a broad brush by claiming 'we' like riding with quill threadless stems and 'we' enjoy ill fitting bicycles.
Modern saddles are just like all these other modern components. Bikes were meant to be used and part of that use is replacing worn components. There is no magical line where componentry became improper to use because it is too modern. That line, if it exists, is in the eye of the beholder and it should rightfully remain there. To each their own when it comes to what components to use and why.

I love a Serfas RX saddle which is cut in half lengthwise- Its really comfortable- firm but cushioned and flexible but stiff. Not sure how that all works, but it works for me. Saddles are so individual, that whatever works should be what is used.