Fair point, but yes, I postulated the logical extreme in order to make a point.Except that itself is an exaggeration of my claim. I gave two examples of things that can be done on the chassis of existing classes and don't justify their own classes. Nowhere did I state the general case to be true.* Which is why taking it to a logical extreme is merely a rhetorical stunt.
E.g., "No, you can't have my ice cream." "Oh, so you get to eat whatever you want and I have to starve?" That's also taking something to a logical extreme, and also not useful.
*Neither did I define an appropriate threshold, of course, but that's because I don't think that such a threshold can be precisely defined. Clearly your exaggeration is on one side of such a threshold, and I believe the examples in questions are deep into the opposite side. YMMV.
Just because something can be (hackily) represented by another system via refluffing of a mechanic, is not a reason to not do it...
That explanation got away from me.