I'll post my thoughts as they surface...when I'm creating EDM tunes I get very passionate in the precision of it all, ensuring drops fall bang on the beat, aligning BV's to sound really hooky, might spend hours cjhoosing the right Kick or snare tuning to match the pad or arp, then mixing to within a dB to make the thing really glossy, I often dance about in my chair when the groove is right, but the passion comes from the sum of precision, I wouldn't get that vibe if it was sloppy...But I tend to do that with all my songs (I just remember the EDM vibes more than the others)...so I just shot my self in the foot...I'll get my coat...
Conversely I think rubato delivery can be pure passion, but not easy to away from a virtuoso situation.
I beleive that the Wow from watching a shredder steam their way over the fretboard is Wow becasue I can't do that, not wow because it's so passionate, many times it's merely firing off superpractised licks, rather have one note that oooozes feel.