There are at least two ways to look at this: One, that the system there is באנקראט and this is the last cry of a wounded animal who knows his time is up. Two, the beginning of a flareup of hostilities. Yes, times are different, and Williamsburg of today is not that of 1983. But at the same time, all it takes is a few rabblerousers to cause a divide and ruin a good thing. Lubavitch has been active around Williamsburg for a while now, just as Breslov is. So what caused the sudden rearing of the ugly head now? נאר איין ג-ט ווייסט. They have attacked Reb Yoel Kahan verbally, all the while spewing hatred and vitriol. Most people see these fools for what they are, and distance themselves from them. They're the same ones who demonstrate against anything else that moves in Willi. Yet, some people will say that the organizers of shiurim and farbrengens there should keep a lower profile, not because we need to give in to terror, but because of the hatred against Chabad and the Rebbe that they preach on bullhorns.
Time will tell.