City doesn't have the mentality to win in the champions league, as evidenced by the transfer of jor2an they have not been able to win the champions league at all even almost 4 years under Pep City's care always failed in the champions league. Maybe it's the Premier League, there is a possibility that City can win, but it's not the case with the Champions League because it's quite impossible for City. I sure this years is not moment for City can success and get trophy in champion league.
They don't have good record in history of Champions League but do you remember what is history of Barcelona in Champions League before the generation of Xavi, Iniesta, Messi, Busquet, Pique, etc.? They did not have good history, did they?
Everything must be built and mentality you said can be built up with time. If Manchester City win their first Champions League, they can win another one. Just like Chelsea after 20 years they have 2 trophies in Champions League. Do you say Chelsea have better mentality to win Champions League than Manchester City?
How can you be sure that City will not win the Champions League? Where their performance in the Champions League is impressive. They finished the first round from the top of Group A. They will play against Sporting in the round of 16. Relatively weak opponent. I think Manchester will win easily in this round too. Manchester City players are playing well. Pep's strategy has improved. Isn't Manchester City a worthy candidate to win the City Champions League?
They are moving more closely to trophy of Champions League. In the last season, they mostly won against Chelsea in all clashes but failed in Champions League finale when Pep made strange decisions for this squad choosing. Chelsea fighted well enough to take advantage of sudden changes from Pep and took the trophy.
Problems of Manchester City are similar to PSG. They are strong enough and need a little more luck to win it. Sooner or later they will win and get Champions League trophy.