Personally, I agree with you. Without any real evidence I think it's just as plausible something like this could be fabricated for anti-American propaganda.
There are many countries where people suffer from dictators and oppressing regimes. US (and US citizens) shouldn't give those regimes an excuse for their actions by defending torture for any reason. Those dictators are telling people that they torture for the benefit of the society, to save multiple lives etc. Don't be like them.
http://www.theguardian.com/world/2011/apr/25/guantanamo-file...
If someone has some information that you desperately need them to cough up, there are better ways to go about it.
Really, why on earth would you take actions that don't make sense to get information you don't need for reasons that don't exist?