“Why wouldn’t it be? If they advertised: “only students with Jewish mothers allowed!” they would get almost nobody. Use your common sense. They aren’t mekareving everyone who shows up to a mass event on the spot. They’ll get the answer before they zoom in on individuals who have real potential”
That’s a good svara, but in reality it doesn’t work like that. The event is for teens who attend the CTeen programs at their local Chabad House, who come to NY for a weekend with their Shluchim.