I'm completely fine with this. Get off the hwy. These people don't have the right to compromise others going about their daily business. If I'm picking up my kids from somewhere and getting them home, I don't want to be detained by a protest on the hwy and put in that same situation the guy with the horse trailer was. I avoid these areas where they will protest, but when they block hwy they are forcing people to engage them.
They're blocking traffic. That isn't peaceful protesting. They should have got pepper sprayed. They needed to move and didn't. If the coppers tell you to move and you don't, they're going to move you.
You're actually fine with him spraying, then walking up and pulling someone's mask down and spraying again inches away? Then throwing and spraying someone else?
Get 'em off the road, sure. But I don't think that's the proper deescalation technique he's been instructed to use to clear the 4 people off the road. @Glocktogo can likely weigh in though.