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When comparing with last season, actualy Borussia Dortmund's appearance can still be said to be safe, because last season they won 7 defeats for 1 season, this season they only felt 3 defeats. The diference is that the draws they have won this season are more than last season. But that does not mean their record of defeat will not increase, that's what they should pay attention to.
On the other hand, competitors like Bayern Munich have improved from last season, especially now there is Leverkusen who is in very good form to compete in the top flight for the title. Borussia Dortmund must be able to improve even more, they cannot continue like this, otherwise maybe they will also be thrown out of the top 4 positions. Although they are now still in that position, but they also have to pay attention to Lepzig who is trying to catch up with them.
Dortmund's 7 defeats last season mostly occurred in away games. In their home match, they only received 1 defeat. This season, Dortmund has only experienced 3 defeats, 2 at home and 1 at away from 20 matches.
You are right, despite a losing record like that, Dortmund should be wary of other impacts that could make them fail to play in the UCL next season because their points are still very large for RB Leipzig and Frankfurt to take over that position.
Bayern Munich is still the standard. Neither increased nor decreased in my opinion. It's only because Bayern Leverkusen is doing well that the competition feels more exciting and more challenging for Bayern Munich.