I neglected to mention that my room definitely has "suckouts" but I heard the same "thinness" in the 22s at Jason's house. And I do agree with the comment that the M22/M80 sounds very similar above the low bass because when I disconnect the woofers on my 80s, they do indeed sound like 22s. I'm sure there's a similar effect with the 60s.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated