Yes. It would be hard to argue that balancing the red, green and blue is a bad or unnecessary thing for those want to evaluate the performance of two or more panels. The "boutique" factory picture modes or simply adjusting the settings by eye will really do nothing more than push the consumer into an uninformed decision.
I have no doubt that the F8500 will look fantastic once calibrated. From what I gather, it will fall ever so slightly short in a few more areas than where the VT60 will. While the F8500 can become brighter, my ISF Day is putting out plenty of light for my viewing habits (indoors; normal light). I've posted the ISF Night for my VT60. If your set isn't calibrated, then look at the "before" and that's pretty much what you will be seeing. I am surprised that Ken has been able to evaluate his set's performance without a calibration.
HT: Panasonic BDT 460 | JVC RS600 | 106" x 45" Stewart ST 100 | Marantz AV7005 | NAD M27 | Elac Uni-Fi UF5, UC5, Debut B6 | Focal CMS Sub
Stereo: Cary Audio 306 SACD Pro | Cary Audio SLP-05 tube line level | Cary Audio SA-200.2 | Focal Diablo Utopia III
Den: Panasonic BDT 220 | 60" Panasonic VT60