I don’t see much wrong with anything he said in the article to be honest. I don’t know what ‘milkshake’ means, but it just seems like Wiggins is a fairly straight-talker who therefore doesn’t do much editing before the words come out.
And I quite agree with his point about marginal gains. At the end of the day, a really successful athlete is someone who has the right combination of talent, mindset, physical skill, and right training. Sure, there may be little things that can help him or her do a bit better, but those must be peripheral at best.
Except in the case of Lance, whose body sounds like something akin to a Novartis storage facility.