Ah yes, I had forgotten about Typed Arrays, which is a terrible name for what is in fact a buffer view. The entire arraybuffer/typedarray system was a later (≥IE10 if I am not mistaken?) hack added to make up for the fact that Array and Number are super inefficient for data processing.

But regardless of them being a bandaid, you are correct that it is an exception. ArrayBuffer and all its views count 10 types in total, so were they the only exception? If so, I believe my point still stands.