Because that's what happened, it's not an excuse, it's the truth. Did you also see where I said - "
the Cavs deserved to win because they capitalized when the Warriors were wounded". You need luck to win, it happened last season, it happened in 2015 (when the Warriors won) and it's happened all throughout history. It comes with the territory of winning. And yes the Warriors got lucky with Kawhi going down, regardless if they would've beaten the Spurs with or without him. Just as LeBron's been lucky over the last 7+ years playing in the EC against lesser competition. You need luck to succeed in this league, hell it applies to sport in general.
I still don't know how you came to the conclusion I dismissed Kawhi's and Kyrie's injuries as "part of the game, b.".