With Chrome hiding the 'https://' a bankinfo.zip URL ends up looking a lot like a file or a attachment. So it could be used to trick people into assuming the file comes from a trusted domain instead of a third party one, as the user just see a filename without a domain part, not realizing what looks like a filename is the domain and they are no longer on their previous trusted site.
This is especially problematic as the 'https://' hiding also happens in the URL preview when you hover over a link (Edit: seems to happen only for longer URLs).
This is especially problematic as the 'https://' hiding also happens in the URL preview when you hover over a link (Edit: seems to happen only for longer URLs).