That's a bit of a backtrack from your original point. I don't think Chambers had much support in 2008 at all. By 2012 it was 8 years from his crimes, and his career at the highest level was dead - unless you can point to a partiuclar journo being nice to chambers and nasty to contador, the point really doesn't stand.
Watch it sailor boy! Irish journalist, please ;-) AS for the beeb, they have a very specific remit as a publicly funded games broadcaster; their editorial leeway is 'limited'.
But let's be clear; there are reasonably regularly anti-Ohuruogu articles even now; in many ways she was the sacrificial lamb to the then relatively new whereabouts system, but once upon a time, she was going to be the face of the Games - she was defending olympic champ, and from within a stonesthrow of the stadium. She wasn't though; Ennis, from Sheffield, was; CO never even made the B team for that.
This would Baugé, who served his own whereabouts ban lets be clear, hijacking the presser immediately after he was beaten in the Olympic Final? Yeah, nobody's gonna treat that, in any country, as other than sour grapes - See Janet Evans for example, in the much more obvious doping case of our own Michelle Smith De Bruijn - hell, Clinton got involved to sort that debacle out. I saw a fair amount of Beeb coverage on Bauge's hijack - they went very light on him, frankly; his own ban was barely mentioned, though I think hugh Porter had a dig.