If actually Jose pattern of play is outdated, he shouldn't have managed to reach the Conference league finals, let alone to lift the trophy.
I will rather call Jose a masterclass, because what Guardiola, Tuchel and others were unable to do against Madrid, he did it against Feynoord. Despite the pressure mounted by Feynoord on Roma, Jose and his boys were able to defend the lone goal they scored.
It is true! Mourinho was never a coach who puts his team to spectacular football, but practical football. And it is an exaggeration to say that he only defended the result. In the first half, before and after scoring the goal, Roma continued to press hard and could have scored another goal. The second half is normal to lose, Feyenoord pressed hard, leaving Roma with less space to attack. Then as a good Italian team, Roma defended better than they attacked, despite having attacked well and also having good chances in the second half.
We have seen him manage high profile clubs and got trophies, he also managed averaged clubs and got result.
It can be true that cares about his post more than the opponent's goal post, and I believe nothing is wrong with that.
Congratulations Jose, you are the special one.