They are good in closing out games and protecting their lead.
But maybe not against the depending champ, they got outplayed in the last minutes and if they really want to beat the Warriors, they have to remain the composure and play like it's the last game of the series. The way I see in the last 2 games and I want to compare it with the Rockets, I can see the Rockets are the tougher opponent of the Warriors, and since Rockets were able to bring the game to 6 games, I think this series might end up in 4 or 5.
The Rockets are obviously a tougher opponent compared to the Blazers, but you should also remember Warriors were also already 2 up after the first two games at home court, so we could see something similar to series against Rockets, Blazers should have more confidence in their home court too, and If they can win game 3, then this series could reach game 6.