The reason I think it matters is that, because people keep on using the name of the wrong format, people keep on using that wrong format when they want to implement feeds. Where if they had known about Atom, or that podcast feeds are the only reason not to use Atom, they would gladly have used Atom.

Flashback to a memorable bug report complaining that "the JPEGs I'm uploading don't work" but upon further investigation, they were trying to upload HEIC photos. The field was explicit about the formats supported, but to this user, "JPEGs" just meant "images".