For one they were in the street with a (hateful) banner. Whenever left-wing protesters do their thing the first way the cops fuck with them is to tell them to get off the street.

It also wasn't 12 people in the street. It was a total of around 3 or 4.

Basically, due to the layout, the only way they could have so offensively displayed the banner to the crowd waiting in line is if they were allowed to be on the street. There was no room on the sidewalk for them. Ergo, NYPD -- through inaction -- enabled them to do this aspect of it.

(Handing out flyers peacefully was of course protected speech.)