I have drag raced a 1992 Mustang with a 5 Speed TKO and a King Cobra Clutch for the past 8 years and never experience wheel hop like this (the stang is a live rear axle vs, IRS on the GTO). Stang is a high 12 sec car @ 110 mph, so it is close to the same HP as the GTO (but about 700 lbs lighter). I don't think it is driver error.
On my first run, I popped the clutch at around 1700 rpm, then I let it out a little slower on the 2nd pass and the hop was about the same. On final pass, I just drove it off the line and punched it once I was rolling (that was best elapsed time). At lunch today I went down a country rode near my office and launched the GTO at 2200 to see if there was maybe a suspension prob, but I spun the tires with no wheel hop at all. I think it was the track surface.
2005 Torrid Red GTO M6
2004 Dodge Duango Limited
2002 Mustang GT 5 speed
1992 Mustang LX Convertible