I've never done beer can chicken and chances are good I probably won't, but who knows.
Really, go through all that to put down one of many popular cooking methods for chicken? This debunking effort wouldn't have anything to do with click effects, would it?
Whether those claims are true, false or somewhere in between what is the big deal? More than likely one can of "wasted" beer won't hurt anyone. As long as it's cooked properly, people enjoy it and the process, there shouldn't be a need for anyone to debunk it or anything else for that matter. Stop "debunking" everything under the sun!