I disagree .... you want him to start saying "I've never tested positive" - in a "measured, composed, rehearsed" fashion?
No, sorry, been there... and I believed in LA for a long while too.
Sky seem to have re-written the rulebook on training and come to the Tour, not just with an improved BW, but with a squad who are able to protect him. That seems to have taken so much sacrifice, apart from the stresses of the Tour itself, and all that goes with wearing Yellow, that I'm not at all surprised he "goes off on one" when someone asks an unanswerable and frankly silly question about doping.