Reddit mentions of WMF Boston Cocktail Shaker

That's called a shaker glass and wasn't even meant to be a beer glass originally. It evolved from being one half of a Boston Shaker, which allowed bartenders to mix and measure multiple cocktails in one go. Sometimes you still see them with measurement markings on the glass part.

Various people have opined about how it doesn't do much for the beer.

Apparently it became the de facto standard in the 80s because it is cheap and utilitarian. Stacks nicely. Demand better glasses!