It’s good that this is only the first match and this penalty was not decisive. I think that a draw in an away match is not the worst result, of course they would like to win away, but after this match PSV is in a more difficult situation, since the match in Germany will definitely be more difficult for them. This is not the first time that a referee's error has affected the final result. In the second match, Inter managed to beat Atletico, I didn’t expect that they could win, I expected that the match would end in a draw. Now Atletico will have to correct the situation in Madrid...
Regardless of what happens, the final result 1-1 is very profitable for Dortmund who will play the second leg at home.
PSV has actually made maximum efforts but the quality of the Dortmund team is slightly better than PSV so the results of this series are not surprising.
And for the Inter Milan vs Atletico Madrid match, it was very fierce, even though Inter Milan won the match, they couldn't completely calm down because they only had a 1 goal lead, making it possible to be chased by Atletico who will play at home in the second leg.