I went to the website and there is a lot to go through. So I picked "the fine tuning of the universe" video to watch and I found it to be totally without merit.
The basic argument was if physical laws were slightly different, then it would be impossible for life to exist. Assuming their data is correct, there is absolutely no data or even argument given about why those laws had to be set in place by a supernatural power. Furthermore, even if those laws were set by a supernatural power, there is no argument given why that power/force needs to be "god."
The video went into disingenuous territory at the end, when they took out of context statements from famous scientists, some of whom were very prominent atheists, to make it seem like they thought that the because physical laws exists the way they do, they had to be created by god.
The low quality and disingenuous nature of that video has turned me off from looking at any more of their material.