Respectfully, I don't agree with this either (I know, big surprise). Cooler heads prevailed throughout that entire Draymond exchange today. Like, literally no one made any move to escalate the situation. Four Grizzlies moseyed in to help Clarke up, Draymond was there by his side holding onto him to make sure he was okay, and then everyone walked to the bench for the review.
Quite honestly, if you're coming up swinging and fighting after that, I mean, that's your prerogative, but that's also on you. I've been accidentally or overzealously flagrant fouled many times in life and I never felt I
had to start a fight as a result, especially if the player is there checking on me the second it happened. There's a giant chasm between those accidental hits and the dudes who submarined or clotheslined me with intent.
Anyway, just for the sake of levity, here's 10th grade me getting clotheslined for your viewing pleasure.