So what was the aftermath of these arrests? Are the police getting shit for it, or are the those arrested actually charged with something?

They danced, and they got arrested.
Those who resisted got tougher treatment to overcome such resistance.

If they shouldn't be arrested in the first place, you say, then go back to whatever legal grounds the arrests were made on. If those are wrong, then go back to the drawing board. Police aren't there to think for what's right to enforce and what's not right to enforce. That's for the justice system to decide.