No it's not an insult, it legal terms it's called due diligence.
But where are all the massed protests against murderous Jihadists in the West? I haven't seen any. CAIR or some other Muslim organization will put out a press release denouncing these attacks, and that's pretty much it.
Moderate Muslims should be outraged by their Jihadi extremists and protesting, en masse. Specifically, they should be protesting outside of Andy Choudry's masjid.