Indeed. The strain has since been verified as just below 1.4 million, IIRC, but it still remains rather less stable than most as the result of being a 3-way cross of the top chillies of the time (which may, themselves have been slightly unstable).
Everything I have heard has suggested that there was a lot of PR backlash from its record and Guinness was forced to change their ways.
As I say though, the true Viper is a real goodie and I know I'm growing the right stuff because it matches the taste of the only UK sauce to use it, produced by the original breeder himself.
Also, if anyone gets a white one again, do let me know. I am most interested.