Thanks for noticing these things, Ben. I've deleted it for now.
These generic SFW holiday tunes are difficult to get info on. The compilation album it comes from is from 2012, but those types of albums are made years after any song's release, so the dates are always inaccurate.
Release dates always refer to a song's first release as a single - or on an album...but not a compilation album. This is one of those grey area rules I need to write down somewhere. If you know a song's from decades ago, don't add the most recent release. And never believe info from YouTube unless you know a song was made only to be posted there.