I suspect the controversial proposition, whether intended or not, is that everyone in countries with a notable beer tradition is a snob who will refuse to drink anything but the best served according to the most exacting standards.

Clearly, this is false, and it is enough to visit such a country or look at beer sales to know that this is the case.

At the same time, I will agree that the average beer and what is considered "drinkable" in probably any European country is significantly better than the swill that passes as average in the US.