In accordance with my prediction yesterday and yesterday I said that there were 2 chances in this match, either Dortmund would win narrowly or it would only end in a draw because these two clubs had just met twice.
From the results of the first meeting in the friendly match, Dortmund won narrowly, while in the last match the score was only divided, ending in a draw and yesterday's match also experienced the same thing if Dortmund were still having difficulty finding the right strategy to break into Heidenheim goal.
Meanwhile, in yesterday's match I saw that Heidenheim imitated Dortmund's playing style when trying to defend Heidenheim also defended, but when Dortmund gave up, Heidenheim also attacked, so it was clear that Heidenheim actually wanted to defend its position so as not to lose points.
Meanwhile, Dortmund also wants to maintain its position so a draw for me is not bad.

Maybe some people feel disappointed not being able to win against a weak club, but a weak club like Heidenheim can always make things difficult for their opponents when they want to score, so don't be surprised by conditions like this because they often happen in the Bundesliga.