Yes that's right, I also saw a different mentality shown by Dortmund in France, it was a different aura and a different style of play, not what we usually see in domestic league matches.
I think why Dortmund didn't really get a position in the domestic league because they felt that in the domestic league they were struggling enough with the amount of competition that appeared, or basically Terzic was more eyeing the champions league than the Bundes league, he maximized their chances in the champions league and yes he said he was now waiting in the final, waiting for the results of the Real Madrid and Bayern Munich match tonight.
In my opinion, saying that they are targeting the Champions League more than the Bundesliga doesn't make sense either, because the last time they were champions in the Bundesliga alone was the 2011/2012 season, and after that they couldn't become champions again because Bayern Munich was always successful and only this season Bayern Munich could not defend its title because it could not compete with Leverkusen. However, if you say they are aiming to win the Champions League because this is their last chance to become champions this season, that still makes sense.
In my opinion, Borussia Dortmund is not serious about competing, because they always prioritize business over trophies. If they want to then they really can as long as they don't always sell the talented players they have.
The 2 shining young players they sold are Jude Bellingham and Erling Haaland for example, if they keep those players I think they will be much stronger than their current form.