> Ultimately this is an argument about the precise semantics of "removable storage". I don't regard an MTP device as "removable storage"
This is absurd. You don't get to tell someone, "you're wrong", then later when it's pointed out that the original assertion was actually true, then say, "oh, I meant that you're wrong as long as we're using my version of the word, the one that's very different from the one everyone else was using."
Sorry, but that's blatantly disingenuous. The original context was very clear. If you really meant, "well it sort of works as removable storage in one sense, but not in this other sense" you should've just said that to begin with.