I definitely support what @rauchbierlover is saying and fully support Schneeeules efforts on what a real Berliner Weisse is.
Yet beer evolved a lot in general over the last 100years as well. An IPA nowadays is different then it was back in old England. Most beers had a subtle smoke note because of drying the malt over fire. And more…
This case is yet more specific as the style didnt evolve over time it was technically „forced“ by Kindl with buying up all the remaining traditional breweries that survived WW2 and then transforming the style in to a more mass product capable way. The term Berliner Weisse is not protected like Kölsch for example so it’s actually okay to call these beers Berliner Weisse as that’s what american craft brewers identififed as the style. Yet what a few number of people are trying to educate on is that the proper style is totally different. No one is saying these beers are worse or wrong or anything. It is just a way of perception and acknowledging the history of a product.
Take Lambic and American Wild Ale for an example as it is an example on how to differentiate on the historic way and the more modern way. To Lambic a similiar progress happened as to Berliner Weisse. It was nearly extinguished in the 80s and the market flooded by artificial fruited versions of it. Yet they achieved sort of a reincarnation and nowadays true Lambic is recognized as one of the most hyped niche-styles. A similiar progress that should happen to true Berliner Weisse as well.
I differentiate 4 styles of Berliner Weisse:
as true to the original as possible including Brettanomyces
the Kindl style, mass produced, sugary sweet, artificially colored
the kettle sour recreation close to the original without brett (take Berlin based BRLOs variant as an example)
the modern Berliner Weisse. Kettle soured and with all kind of additions from fruit puree to lactose.
I support the initiatives of rerecognizing the true Berliner Weisse including Brettanomyces. Not only from a technical brewing pov but also from taste they are totally different than most of the modern interpretations.
If you read the article you should at least get a feeling for it and not ignore the historic facts behind it.
I can really recommend the podcast from Milk The Funk with German Berliner Weisse researcher Benedikt Koch aka Wilder Wald: