The other thing is, if the red dots indicate "tested positive: career" then surely riders who were suspended for doping even if not at the Tour de France need to be included. The Luxembourg dot is farcical in years other than 2012, as it would seem to suggest there should be all manner of repeated dots for people later shown to be offenders (and therefore would be dotted with Millar all over the place... and also make the 2010 Canadian dot nonsensical too, since neither Hesjedal nor Barry claimed to have been doping in 2010 and neither appear elsewhere at the time they actually confessed to). Contador has also been mentioned for 2009 due to his 2010 positive and removed, which means all Millar's performances pre-positive need to go in there, surely?
Most ridiculously... where are the Italian dots in 2008? No Piepoli? No Riccò?! And 2009, no Pellizotti? I mean, he took a jersey home!
Put quite simply, I don't think this is a piece of sinister jingoistic journalism. I think this is just an abysmally terrible, inaccurate, insultingly poor piece of journalism that doesn't stand up to even the most vague scrutiny. It has a large number of omissions, including some absolutely key positives (the Saunier Duval riders in 2008, among the first CERA positives, Sinkewitz leading to the Freiburg Investigation in 2007, and Pellizotti, a King of the Mountains winner), a shocking inconsistency in the rules it applies to how riders are counted (some riders who've tested positive later in their career are included for several years regardless, e.g. Contador and Fränk Schleck, of whether their bans actually reflected longitudinal positives along the same lines as e.g. Menchov, while some riders who've confessed or tested positive or been otherwise sanctioned are omitted entirely (Millar, Pellizotti, Barredo) or only included for one point in their career (the mystery Canadian). Tom Danielson is a question mark worth considering as well.
Quite frankly, this article is so poor and so riddled with errors that I can't actually believe there is any underlying motive to the selectivity of it. It's just been hastily thrown together with so little rhyme and reason that it's borderline negligent on behalf of the BBC.