Hmmmm... "The Axioms are not suited for such music...."
I always thought this was a silly way to audition speakers. Does this mean you should ideally have a different set of speakers for each genre of music you listen to? Should I have a bassy set of speakers for metal, an airy set of speakers for classical, and a well-balanced set for jazz? That's BS.
If a set of speakers is accurate -- and the M22s definitely are -- then they should reproduce EVERY genre of music well. I really don't think the guy sitting behind the mixing console thinks about what kinds of speakers "Band X's" audience has and mixes the CD appropriately for them.
I'll give the dealer the benefit of the doubt and assume he was just referring to the M22's low perceived bass output.
