Do you think Atletico/Dortmund's chances are worse than Barcelona's? I wonder why? Atlético and Dortmund are playing each other, which means that no matter how bad they are, one of this pair will be in the semi-finals. Barcelona is playing with PSG and it seems to me that its chances (against the backdrop of a poor game throughout the entire season) are less than those of Atletico/Dortmund.
The draw worked out in such a way that in one half we have all the favorites (Real, Arsenal, Bayern, City) and in the other all the outsiders (Dortmund, Atletico, PSG, Barcelona), so in fact everyone has approximately the same chances of reaching the final.
I agree with you, that no matter how bad they are, one of them will be in the semifinals and that is something that I think proves that they are the 8 best teams in the Champoins League this season. They have been successful in this round and managed to eliminate many of the teams competing with them. Although perhaps in terms of their chances of becoming champions, I don't think they are any bigger than the other teams in the quarter-finals.
But I don't agree with what you said that everyone has the same chance to reach the final. I actually also give them a chance to reach the final and even become champions, but their percentage of chance is not the same to achieve that. Would you give Manchester City and Paris Saint Germain the same percentage to reach the final? In my opinion, that's not right, because looking at their performance, Manchester City is better, so for me Manchester City has a bigger percentage than Paris Saint Germain.
City is of course stronger than PSG, but you forget that they have a very different path to the final: City, in order to reach the final, must beat Real Madrid and then Bayern/Arsenal. PSG must beat Barcelona and then Dortmund/Atlético. Which path to the final is easier? Obviously the second one. That is why I say that thanks to the draw, all 4 teams have approximately equal chances. If it had been a round-robin tournament or if there had been other pairings, the teams' chances would have been radically different.