You may have missed some of the subtle changes we have made to the certification requirements in v5.0 (scroll to the bottom to see a revision history). We have listened to your challenges and simplified some of the requirements as well as removing duplicate/redundant entries.
We have also given you more control over the deployment of your app, the key things are:
Check out the official blog post on the Windows App Builder Blog.
If you are having any other challenges getting your app built or published in the Store let us know in the comments below.