I think that there should be no talk about Terzic’s dismissal, on the contrary, Rauball should have been worried that some other club want to be lured Terzic. 
The final for Dortmund is already a great achievement, they were lucky on the way to the final, but with Real Madrid just luck is not enough. In fact, Terzic was once the coach of Haaland and Bellingham, so you can see how well he understands players and how he knows how to unleash their potential.
Dortmund managed to reach the final round of the Champions League this season and they should be proud of all their achievements this season, in the last two seasons of course Dortmund has become a pretty strong team and in fact last season they managed to finish runner-up in the league only losing goal difference with Bayern Munich, besides that Edin Terzic has managed to get one Dfb trophy since his coaching, Firing Edin Terzic is of course a stupidity if they do it later, the strategy and game scheme applied by Edin Terzic at the moment is really quite good and even they are able to make it difficult for Madrid in the Champions League final, for now Dortmund should be more proactive to keep Edin Terzic in the Dortmund squad next season. The final for Dortmund is already a great achievement, they were lucky on the way to the final, but with Real Madrid just luck is not enough. In fact, Terzic was once the coach of Haaland and Bellingham, so you can see how well he understands players and how he knows how to unleash their potential.Edin Terzic is no different from the savior of Dortmund after they failed to compete when the previous coach, currently Edin Terzic who managed to bring Dortmund to the Champions League final certainly made him approached by many clubs to recruit him, but reportedly Edin Terzic still really wants to stay at Dortmund next season, but he also does not refuse to leave Dortmund if indeed Dortmund no longer wants him as a coach.