Could mean a lot more police resources will be available.
Even if the attackers are Muslim they will not rule it a terrorist act. They won't want to piss off any Muslims. If there is a political assassination then you better believe they will call them terrorists. If Richard Reid had actually lit his shoe...that entire flight would have been listed as an internal explosion of mechanical failure. Richard Reid does not sound Arabic now does it?
All of us and investigators who would have done research on the flight manifest would be known as tin-foil people and the FAA would have us all thinking things are safe in the skies...just like over Long Island and TWA 800 as well. Riiiiiiiiiiiiiight.