The 720 that "sat" on the north side of PHX was the test-mule for Honeywell's engine program. It had an extra engine mount on the upper right hand side of the forward portion of the fuselage.
If you look you'll see there's now a 757 sitting right were the 720 used to sit, "Out with the old in with the not so old."
I don't think airplane destroyed in the video was the ex-Honeywell jet. The airplane in the video had a dark green colored cheat-line on the side while the Honeywell jet had a red cheat-line. Also, there didn't appear to be any sign of the engine test mounting modification on the forward right hand side of the fuselage.