I'm not sure he is criticising the Sky policy, which is clearly stated. What he is REPORTED to be saying is that there may be a place for reformed offenders within the sport, as advocates for the correct way of doing things. As Julich and Millar have shown. I believe that someone who has made one error should have the chance to redeem themselves, albeit the ban for first offence could be extended to 4 years, enough to seriously disrupt a career, prevent one Olympic participation, and provide a significant deterrent.
the caveat is that this should apply to ALL sports, every single one, big money ones included, with zero exceptions. I think that every competitor in a professional capacity should be on the ADAMS system, whereabouts required for one hour a day five days a week for unannounced testing, blood and urine. If anyone believes this is an intrusion into their personal life, two questions: Do you really want to be a professional sportperson, because this goes with the job? Do you want to compete clean and suffer defeat to suspect competitors?
Answer, to the first, is yes, and if you don't like it, go and do something else.
Answer to the second, has to be yes unless, of course, you want to join the ranks of the "unclean". In which case find a sport that does not care/want to know (insert your choice here).