To me it seems like this is really the only point OP have, which seems to have more to do with how modern clothes are produced? (factory, based on some averaged out categories of body type)
Other than that it seems like all the things he say are "better", you can find modern variants that do as well.
And the women's cloth rant is weird. Isn't that... Same for (most common) women's suite too? Pockets being too small is enough of an issue that I know some women just buy men's jeans (smallest size) instead, if their proportions are not too different (hip) from average for men.
Also, I didn't see any defense for neckties. What's good about that?