It's not much about semantics for me. It's more about logic and slippery slope exceptions.

If we make the kilt an exception, that it is not a skirt just because somebody feels strongly about it and says so... Then by that logic, I declare that a sarong is not a skirt either. Just because I say so and I object on the grounds that it bothers me when a sarong is called a skirt. It's just wrong. A sarong is not a skirt, it is a sarong... I assume a contrary position and demand that an exception be made. And you will be hearing from the lava lava committee very very soon about their offense at you calling their garment a "skirt."

See where this leads? Eventual breakdown. Classification and etymology are there for a reason. If one exception is made, then many exceptions follow. Things are what they are for simplicity. If you change these things, for what ever reason, you just muddy the waters and add confusion.

So pretty soon you have things that waddle like a duck, quack like a duck, and float like a duck, but nobody actually calls them ducks. Which is really dumb, if you ask me.