Blacklist is a very commonly understood term. If you understand it, and most people do, whitelist is something you’ll figure out pretty quickly. Passlist is a very uncommon term. Here’s a hint: try typing blacklist, whitelist, passlist, and blocklist on a phone or computer. Notice the last two words have squiggly red lines under them?

Also, what does passlist mean? Things can pass? Things have passed a test? Things that can or should be passed somewhere? Blacklist is understood by most people, computer experts or not. Blocklist is novel, yet easy enough to understand. Passlist is more obscure, so why throw out long-used and inoffensive terminology for the sake of virtue signalling to maniacs?

A Google search for '"passlist" and computing' returns 310,000 results, with most of them referring to passwords or passing exams. '"Whitelist" and computing 'returns 6,070,000, with all first page results clearly referring to whitelisting. '"Blocklist" and computing' returns 495,000 results, with results showing that it's a term used more commonly in managing spam than the normal use of blacklist. '"Blacklist" and computing' returns 6,020,000 results, with the first page results clearly describing the concept under discussion.

In summary, these new terms have little uptake and don't even describe the same concepts as the original terms. It'd make as much sense as decreeing that floppy disks shall now be known as 'plastic enclosed magnetised disc storage'.

Edit: Google fun