I have lived in the Stuttgart area since birth, Dinkelacker was (and is) an important regional brewery next to Stuttgart Hofbräu, Schwabenbräu and Wulle.
Dinkelacker, Schwabenbräu and Hofbräu have brewed different "festival beers", Christmas beer with more traditional spices and then lighter festival beers. All these also brew beers for the Spring Festival and Cannstatter Wasen (the biggest festival in Baden Württemberg and after the Munich Oktoberfest the most popular and largest folk festival. ), and give away their festival beers in large festival tents. These beers, like the one you show, are brewed for sublime lightness; they are given out in mass jugs (1,069 l). Festival beers produce a stable foam, (best come from the barrel) so that the beer arrives to the table with a significant and lasting head. They are designed to be able to drink several of them.
Dinkelacker has taken over the local rivals Woolle and Schwabenbräu one after another, as well as Sanwald and Cluss, whose beers and brands remained largely retained despite the takeover.
Meanwhile, the Spaten-Paulaner group is the majority owner. The quality has changed slightly to negative for my personal taste in the last 2 decades, but it's all obviously personal taste, i.e. subjective opinion.
The beer should absolutely be drunk with a crown, so it has a lasting, necessary head. Unlike how you're used to in the USA.
Not sure if I could answer your question in a way that makes you satisfied.