The uploader is the person creating the copy. Downloading is not creating a copy; downloading is receiving a copy.
I would love to see a citation on that UK precedent, but as you said: “thankfully this is only the case in the UK” and does not apply in the rest of the world.
Making any unauthorised copy is an infringement of copyright.
The exceptions to that are so numerous that the statement is closer to false than truth. “Fair Use” blows the absolute nature of that statement out of the water.
There has never been a successful prosecution for downloading only.