Most TLDs are not the names of commonly used file transfer protocols, right? I think that's the primary difference that is concerning to the author of the post we are commenting on, and I it find convincing.
Zip isn't a file transfer protocol, it's a file compression format and popular file extension. Still, I don't understand a scenario in which this is going to be abused for exploitation.
Alice sends Bob an email containing the text resource.zip somewhere. Alice and Bob both trust each other. Bob's mail client converted the text into a link, Bob clicks the link and ends up on Mallory's website where the exploit is.
