Yes, you have misunderstood. There will be two tutorials. A beginners guide and an advanced guide. These will be sold separately, and also as a bundled product.
This is to help lower the price for those people who are ready familiar with the basics, to make the downloads smaller for those with bandwith issues.
The current pre-sale pricing is for the bundle of both together. It's the best price that we will be offering for the combined product.
Michael