User blog comment:Stanley56/Best of Alternates/@comment-26268091-20150316190603/@comment-5392675-20150318053519

They're routines of their own because they're not alternate routines to a song. For example Extreme routines are alternates because they belong to a song (with its own routine). Sweat Modes (not the Sweat Alternates) are on their own because they're not linked to another song and can thus be treated as Classics, just not proper Classics.