It all reads that Wiggins is the past and put as much distance between Wiggins and Sky now and Froome.
The question Walsh needed to ask, was if they did it with one rider, why stop there? Also if they crossed the line they drew for themselves with 'whiter than white' claims how far are they prepared to go over that line or does it matter, once crossed anything is possible.
But it appears also that Walsh wants to lay blame for TUEs at Wiggins/Freeman and leave well known doping doctor Geert Leinders out of the picture as that really puts Sky is the same light as all the other teams, which we know they are, but those teams don't have a media empire connection.
Walsh also lets Master of Detail, the brains behind the success, Sir David Brailsford, off the hook. That stinks!
I also think Walsh was explained he could become the voice of Sky or go find another paper, he signed on as the voice of Sky.