I think that's a totally fair reason to ask for a takedown. Like they said, the music wasn't the subject of the analysis so I'd think it isn't fair use. Howev

I think that's a totally fair reason to ask for a takedown. Like they said, the music wasn't the subject of the analysis so I'd think it isn't fair use. However I'd be interested to know if they contacted Lewis directly with good intentions before leaping to litigation.