The whole point of buying a better goalkeeper is to ensure that the opposition do not get the lions share of the shots on target into the back of the net.
Dubravka does his job and is what you can call a keeper you can rely on.

But let's not detract from the amazing team work that's done in front of him.
The entire game is about teamwork.

You can argue many teams get away with a lot due to their keeper but it is literally their job and a reason why they're number 1.
It's like having a defensive midfielder breaking up play after play after play and winning the game 1-0 only for that player to be singled out as the reason why we won 1-0.
It's a team effort and all play a part.