Team Sky rider Nicolas Roche described Sir Bradley Wiggins' decision to find permission to use a banned drug as "ethically wrong".
Roche blames the rules surrounding TUEs for the media circus and furore that have come from Wiggins and Sir Dave Brailsford's Team Sky, explaining to cyclingnews.com: "Like I said already on my Twitter a few weeks ago, when WADA was hacked the first time and before the Wiggins story, there is a major problem with TUEs.
"There is a problem with the actual system. Again, you can do whatever you want against Wiggins, but unfortunately, as far as ethically it's wrong, he is within the rules."
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UCI president Brian Cookson previously insisted that the rules given by WADA were followed strictly by Wiggins and all involved.
Hacked data shows that Wiggins was given three TUEs for triamcinolone right before the 2011 and 2012 Tour de France, as well as just before the 2013 Giro d'Italia.
Wiggins and Brailsford deny any wrongdoings, insisting the banned drug was medically required.
"It is wrong that these rules are like that." Roche argues. "That's where the main problem is.
"Once we get those rules right, there won't be any abuse, but that's the priority."
Since the furore surrounding the Wiggins case, UK Anti-Doping have launched an investigation into "allegations of wrongdoing within cycling".
Wiggins welcomed the UKAD investigation this past Saturday, with British Cycling and Team Sky both co-operating.
Questions have been raised about the availability of powerful painkiller Tramadol amongst the Great Britain team of the 2012 Road Cycling World Championships. The drug is part of WADA's monitoring list, as there are concerns over its potential side-effects.