Empty!?! Empty!?! Damn! At first I thought you were referring to the "Bebop" clip; "loud, fast and empty" was exactly my reaction. I didn't say that because... well, like my grandmother used to say.....You seemed to like the "Bebop" clip, even if it wasn't by Diz.
But, wait!, you mention the audience; so, you must be referring to either the Horace Silver "Cool Eyes" or the Phil Woods/Tom Harrell. Now I am really confused. On the Horace Silver clip the Dutch audience looks like they don't know what hit them and seem totally uninvolved; in spite of the great music. On the Phil Woods/Tom Harrell clip what I can see of the audience is mainly two gentlemen who are clearly digging the playing (big smiles of appreciation on their faces), and there is big applause and hollering after the solos. But, that tune IS faster and louder; so that must be the one you refer to.
First of all, I didn't think "loud" or "fast" was ever an automatic disqualifier. But, empty? This must be the first time that I have heard Phil Wood's or Tom Harrell's playing referred to as "empty": complete mastery of the language of bebop and its harmony, great swing (yes, fast and relentless; but, that is the point of the tune: "Tenor Of The Time") from some of the acknowledged contemporary masters of the music, especially Woods and Harrell. So, in the spirit of enlightenment and sharing can you expound on that a bit? What is it the makes it empty for you; what is lacking? Better yet, what do you hear in the "Bebop" clip that you don't hear in the "Tenor Of The Time". Perhaps the music was better than you think, and had the intended impact on you simply because a very good argument can be made for the tenor of our time being "loud, fast and empty". But, the playing? No way!