Ok, so the only threats to Holland ( according to the article you linked ) were threats to Dutch soldiers in Afganistan , and that was from the Taliban.
A Justice Ministry statement said, "While there are no concrete indications of impending attacks in the Netherlands, the increased international terrorism threat has prompted [us] to raise the threat level for the Netherlands."
So if anything they are just being cautious. Again you are making the mistake of putting all Muslims in the same basket. The Taliban is an extreme radical Islamic group. As we keep saying, but you refuse to acknowledge, is that most Muslims arent like that , and dont agree with their practices.
Also realise that the person that wants to show this video is a Muslim hating anti immigration extremist that wants to get his video across and wont accept any editing on behalf of the TV broadcasters. What TV company in their right mind would broadcast material that was deliberately biased and inflammatory, its not in their interest. If people want to look at it they can download it. He cant claim his rights to freedom of speech are violated when It probably isnt suitable for veiwing in its current form. In any case he has got the publicity he wants so he's happy.