The only other place I'm aware of this happening was on TrueFire, which began having Song Lessons back in December 2021. They removed six song lessons (Hotel California, For What It's Worth, Dirty Laundry, and three jazz standards) back in January of this year. There was no warning or mention of the removal at all. Only afterwards, when I asked about it on their Discord, did they reply that "several song lessons needed to come down due to licensing issues." That may seem like a small number of songs, but their library is still quite small, and it represented about a 10% reduction.

It's possible this has happened on other sites, too, but these are the only two I'm aware of.