Serverless doesn't mean servers don't exist, any more than calling a radio a "wireless" doesn't mean wires don't exist. It just means for the consumer, servers aren't a consideration, just as with a wireless wires aren't.
> My dog doesn't need a wire for anything, but no-one talks about them being 'wireless'.
Indeed :-) But isn't this the same sort of definition you want for "serverless"? Not something relevant to consumers (e.g. "you don't manage servers") but a description of something where servers are not involved in any way?