I'm an FMA guy, and I'm not sure what you are asking. If you are wondering if having blade training would be a way to minimize the damage caused by this kind of terrorism, I'm doubtful. Ten or more guys with big knives and cleavers going berserk in a crowd? Imagine the ensueing panick. Whether they were using guns, knives, or bombs, many innocent people would be killed or hurt.
Historically things like this happened in the Philippines too. Juramentados. Moro suicide terrorists swearing an oath to die for Allah and then rushing into a crown of infidels hacking as many to death as they could before dying themselves. One such berserker allegedly took six shots to the chest and still decapitatied a US Navy captain before finally falling down dead. Is FMA an answer to that? A more practical approach was what the US Marines did. They wore a leather collar, hence the name "leathernecks" and upped their gear from the Navy issue .38 revolver to the .45 auto. They also cut an "X" in their bullets from the tip back down to the brass casing, basically creating a mushrooming round or "dum-dum" like the modern hollowpoint.