Of course they will go far in this competition. There's 5 of them in the play-offs and none are playing each other yet. They're going far almost by default, but only City is somewhat capable of winning it.
That substitution was not that silly since they were struggling in midfield and now they were basically switching to a 4-4-2 which up until Zidane's subs seemed to have payed off since PSG were dominating the game. I have a problem with other of Unai's decisions. Why the fuck is Rabiot still playing in this team? Yeah, he scored but he's been god damn awful, hasn't been able to create shit and lost a ton of balls. And the guy is trash overall, he's one of the most pathetic and overrated players in world football at the moment. Verratti had a poor game as well. Why the hell did he play Draxler instead of someone like Pastore who's been on form lately? Also why wasn't Di Maria playing? He's been great as well lately. I don't mind Cavani being substituted since he didn't do anything at all. Mbappe was way more active, had chances and deserved a more central position. But why doesn't he play Pastore and Di Maria? They're actually capable of feeding Neymar and Mbappe balls, unlike freaking Rabiot.