[majewsky]

In this particular case, it works because there are other long-distance services on the same line that do the extra stops. The EuroCity towards Prague stops in Büchen, Ludwigslust and Wittenberge, which (funnily enough) maps precisely onto the three states that the train passes through.

Edit: It turns out this EuroCity (line 27) is the only long-distance line that stops between Hamburg and Berlin. Lines 18, 28 and 29 go non-stop, as per https://assets.static-bahn.de/dam/jcr:b4fca34a-4b95-4d82-98d...