This is why I said after Game 4 it's not worth my time to stress about this team.
Look at their performance and body language. They are an unserious team. Even in the interviews, they just say the same thing over and over, but repeat the same mistakes every time. I bet you even after this game they'll be like, "oh we just got to play better. Big game coming up" without feeling urgency and not sounding concerned

If they don't care, or are unserious, why should I be? I've seen enough of this over the years now.
Even last year's Finals run they had these kinds of letdowns and annoying instances. They still made it, but then got beat by a Warriors team they should have beat, but they didn't make adjustments.