Out of interest, have you ever heard ATC speakers, particularly larger active models?
No I haven't. The pattern i noticed is that (boutique speakers excluded ofcourse) the more expensive the speaker is the more like the company invested in materials that would damp the cabinet and stop it from buzzing and shaking.
MDF, plastics and cheap vinyl finish is almost a guarantee imo that the speaker will experience audible cabinet resonances at some point.
Plywood, vasoelastic damping material and things that considerably diminish cabinet resonances are considered 'premium' since they don't show up in a show room and they don't effect the aesthetics.
I have a Sansui speaker from the 70s, made with Oak, weighs around 25KG and STILL I can hear audible resonances (mostly using test tones). I know it's a cabinet resonance because once i put my hand on the cabinet or increase the mass further it disappeared.