I don't know how many cheered in NJ, there were some. That the media blended those stories for effect and to build a narrative is what they do.
The Star Ledger story is one big lie from beginning to end. First, they grossly exaggerate the “thousands” remark by Trump in an effort to make his off-the-cuff remark appear to be far beyond reality, which is the logical fallacy known as the strawman argument.
Second, they then use their dishonest strawman argument to allege Trump and anyone agreeing with his remarks about Muslims are engaging in a Fascist form of demagoguery, when it is the exact opposite with the Star Ledger and hostile Muslim jihadists engaging in demagoguery against anyone who would choose to defend their lives against Muslims who choose to attack what they deem to be infidels condemned to death by their religion.
Third, there were large numbers of Muslims, they were wearing hijabs in some cases, seen celebrating in the streets of New Jersey as they watched the World Trade Center burn and collapse. I and many other people on FR saw these New Jersey celebrations in the news, and others were present in New Jersey and witnessed the celebrations as they drove through those city streets. This has been presented in many FR threads.
Fourth, the Star Ledger lied big time about the number of Americans killed by Muslims. See:
Islamic Terror Attacks on American Soil
http://www.thereligionofpeace.com/Pages/AmericanAttacks.htm