They ought to consider also tacking on a charge of "Penal Law § 240.21 Disruption, or disturbance of religious service""
A person is guilty ...who makes unreasonable ...disturbance while at a lawfully assembled religious service or within one hundred feet thereof, with intent to cause annoyance or alarm or recklessly creating a risk thereof Aggravated disorderly conduct is a class A misdemeanor.
It sure sounds like they were recklessly creating a risk of disruption to me.