I personally don't care if people drink it, and agree completely it's not against the WoW as a rule/requirement. But in the spirit of the wisdom of the WoW, it is probably something that I personally think we should avoid drinking too much of. Just like there are many other ways we should improve our diets in an effort to make our mortal bodies the best receptacles for revelation they can be.
I guess my point is just because the Church doesn't regulate something, doesn't necessarily mean copious quantities are good for the body or the belly