I can't even concentrate lately, so I might just be missing the entire point of the Donald Duck article included in the initial post.
I think of musicality as a final product to some type of "ambiance/energy".
My concern with musicality, as it is mostly perceived as a capability of hitting musical notes at exact times, is that it commonly appears disingenuous. A scripted speech that's failed to understand that musicality isn't a capability to hit high & lows, rather an ability to ride the vibe expressed by the overall synergy.
When speaking of overall synergy, rhythm, melody, ambiance, your emotions, it all comes into play. How well are we expressing our sentiments within those parameters?
The idea of musicality (as in the physical side for those who enjoy hitting the beats) is to reach a balance of movement as not to accentuate the music hard/soft enough to interrupt, perhaps even change the energy, where it would be comparable to an out of pitch singer. Higher on the highs, lower on lows destroying the vibe... If the rest of the musicians are on, why then isn't the singer on pitch as well? then, why isn't the dancer dancing 100BPM to a 30BPM song out of place? He isn't certainly displaying what the music makes him feel, rather how he feels dancing as he is. He's dancing to a different song. He's only feeling himself... ok, i'm ranting now. not nice