I agree with you because football is about strategy and there is no way luck will be enough in the final result. Dortmund and Real Madrid were much better prepared to play in the final and both of them did their best to qualify for the final with very satisfying results. Dortmund's task now will be much tougher because they have to face the king of the Champions League and facing pressure in the Champions League will be much different from the domestic league.
Of course luck is the biggest gift they get and that happens because of the hard work they have done so far. The focus is now on the two teams coming out as champions and we want to see how the two teams can play with more pressure in the final match, so that it doesn't get boring when we watch these considerations.
You could say this is the UCL Final between the Fighters Team vs the UCL Legends Team. Real Madrid, which has UCL DNA in the final, will no doubt meet a team whose quality, in my opinion, is below Real Madrid's. This doesn't mean to underestimate Dortmund, if only Real Madrid didn't have the nickname Final DNA which always wins, maybe people wouldn't doubt Dortmund about the quality of their players and their struggle from the group phase to the final. .
Just look at the group phase, underestimating them is Dortmund's strength. In the group phase, it was underestimated that Dortmund would not qualify because they were in the hell group, but the proof is that Dortmund was able to destroy the predictions of football observers to reach first place in the standings and in the knockout phase they managed to beat Atletico Madrid and PSG. This proves that Dortmund is a team that has a good mentality and performance. This final will still be fierce even though Real Madrid are favorites, so I don't think this final will be boring.