Front page of the Mainzer Allgemeine Zeitung, a daily newspaper with a circulation of 200,000, a readership of 500,000 and a regional market penetration of close to 40% of the German-speaking population over the age of 14.
In 12 words – only 10 of them operative – they manage to make 2 grammatical errors.
If I – as a non-native German speaker – pick them up, why not the sub-ed…? Or the lay-outers. Or the author.