Any moderately intelligent person (which clearly excludes Wiggins) should know that the same strict liability which applies to doping also applies to pushing the envelope. The athlete always has the option to push back against management pressure to do morally dubious things.
We don't know if there was pressure applied by the team to use it but they certainly played a part so where were their morals, ethics, customer relations vision, whatever, when they thought this was a good idea?
The "loopholes" were supposed to be for rider's health. Blame team management for abusing them.