Surprisingly, Dortmund was able to beat PSG in the first leg of the semi-final against PSG. I really don't think so. I thought that PSG would definitely win, but this time, Dortmund did it very well. They are able to obtain and optimize the opportunities they have, even though they are small. Because of his match, So, this match was quite close again. PSG also tried to continue to attack but Dortmund were able to resist it. Yes, at least this time, PSG must acknowledge Dortmund's superiority.
1-0 is not a good result if you hope to qualify. If you think Dortmund will not get a good result against PSG before the match, I think you are not doing anything good with your mind in analyzing the match.
Dortmund here could be different from in the Champions League. Since the group stage, Dortmund has performed well. Dortmund were even able to advance to the semi-finals through group F, which was called the hell group, and they managed to win the group.
A draw is not safe for Dortmund but 1-0 is an asset when playing in Paris.