I don't think you're right. I think it's a perfect non-explanation. And not only does it not explain why it's the kind of universe that can support consciousness. It also doesn't explain why it's the kind of universe where consciousness can make a difference. These are both things that need to be explained. Personally, I think Occam's razor is much abused, - but, if you want to invoke it, it means don't invoke a more complicated explanation than you need to for the things that need to be explained. In the position you've put, I reckon there are two things that need to be explained but aren't.