Yeah, I thought that at some point the scaffolding tests would grow and grow because it houses quite some functionality:
- cpt
- tax
- plugin (tests)
- _s theme

So when editing a test, one could filter run the behat test --tag=cpt so it doesnt run all the tests. 
Off course, the a final check should be ran on the complete feature. But in development, a tag could come in handy.

Anyway, updated the PR :)