When Muslims are involved, conspiracy theories make perfect sense.
I know what you mean. But two things to keep in mind:
1.) We don't know how many of the crew, or even if any of them are muslim. The Philippines is 90% or greater Christian, not mulslim.
2.) In things like this, while it is okay to NOT rule anything out, jumping directly to terrorism is not only unwise, it is likely exactly what terrorists want. They want us to get crazy about everything that happens and attribute it to them. It gives them power and validity. Sometimes...a cigar is just a cigar. In a post 9/11 world...anything is possible. But when we begin attributing everything to terrorism, we run the risk of sounding like liberals who attribute everything to global warming.