Hackers, terrorists and criminals are every where associated with different fields - not only with Bitcoin. Just as you can get people using BTC as means of funding terrorism, you can get equally the same number or even people using the USD or any other fiat currency for funding terrorism. I don't buy into such claims against bitcoin and the cryptocurrencies in general. They are all false news to spread FUD.
Bitcoin was created for the purpose of making financial transactions very easy, secured, transparent, and with low costs.