I have listened to this audio so many times trying to figure what went wrong. I have to admit up front that I am a Jack Roush fan, so I am desiring to find that it was not just poor aviation skill on his part.
At first, I thought that the traffic referred to as "Lake" may have been part of the problem. After several listens I have deducted that although the controller stumbled somewhat on the instructions given to "Lake", that was simply the aircraft in the pattern behind N6JR. After the mishap "Lake" was told to go around. The audio that was played on Speed Channel was edited to sound as though Roush made his statement of disapproval immediately after the confused instructions to "Lake". After listening to your real time audio, it is apparent that Roush made his displeasure with the situation known well after the controller instructions to "Lake".
I believe that Mr. Roush (N6JR) was put into a cramped predicament with traffic landing ahead of him. He expressed his doubts to the controller by asking "Is 6JR going to be okay with this?" The controller assured him it was going to work. I am not sure what type was ahead of 6JR, but my guess is that it was a slower aircraft and Mr. Roush recognized pending difficulty as he turned base for final. He stated "I don't think so!"
Just BEFORE the controller warns 6JR of caution for traffic ahead upwind (a bit late in my opinion), you can hear an unintelligible transmission which I believe was 6JR stating that he was going around! Reports that 6JR was too slow for his type would also make sense here, considering that I believe he was jammed into a situation where his type was too close behind the slower aircraft landing ahead.
Considering he may have been pressed to slow on final and then because eyewitness reports stated that he applied power as if to go around makes sense. It sounds as if he trusted the controller a bit too long....maybe he should have called a go around sooner. It sounds as though by the time he applied power to go around, the stall overcame the aircraft and some adverse yaw from the power rotated the Premier to the right.
I may not be qualified to speak this much on the subject since I am a Locomotive Engineer, but I have studied aviation all my life and just dream of one day being a pilot. A good pilot like Mr. Roush!
Wow, I got chills posting that! LOL!