opinions about androidfoss.com?

Hello! I was looking for some foss music player for android, and my search engine proposed me this article: https://androidfoss.com/open-source-music-players/

seems interesting if it wasn't.... completely wrong? of the 4 suggested music player...... only the first one is open source! both musicolet, blackplayer and n7player are closed source. Do you know about this website? is this a super rare and isolated mistake of the author? or perhaps this website is some sort of AI generated trash?