Logistically, this is interesting. Symbolically, it's pretty distasteful, especially considering the 10th anniversary of 9/11 is coming up. I'm not sure if it's supposed to be funny or ironically commemorative, but it certainly won't seem that way to anyone who lost someone in the event. Whoever made it is allowed to make whatever they want but I don't see any merit in belittling something like this, even if it was 10 years ago.
Needs more interlocks Seriously, it's tasteless. Best to ignore it. They can say whatever they want about their motives in making it and putting a video on YouTube, but the real goal is attention.