They should've won Game 2 as well, but didn't. Blown opportunities, just like the Lakers should've won Game 4 against Boston last year. Shit comes back to haunt you, unfortunately. But in the end nobody will remember. All that'll be remembered is the champ.
We learned last year, there is no such thing as "should have won". You either win or lose. We should have won game 1 last year, and game 4. But the better team won. Same this year.