Yes, I think this is one of their worst specially going into the finals, their star players got injured and there is no room for error specially if you are in the NBA finals, too bad for them.
No one would expect that it will happen, it's just unfortunate that it's one of the big reason why they did not get a 3 peat. Leonard was also not fully healthy, in fact his minutes is very limited and have had a lot of rest days during the regular season and that's one of the reasons why they also did not finish in the no. 1 in the east, but that was a good decision as they did well in the post season.