Back to the topic at hand: yes, I agree to an extent. I have never drank a beer in the morning to test this theory, as such, but there is a very strong focusing effect I feel when I do drink. It's like after 1-2 drinks, I can more easily think and focus on one thing, and all the little minor issues of the day fade into the back of my memory.
I suspect this has something to do with how my brain works, and not everyone is affected the same way by alcohol, which explains why some people disagree so strongly- it might just be for them, moderate alcohol doesn't have the same effect.