I beg your pardon in advance for commenting on this purely UK-internal business. Looked at those slides just out of curiousity.
This document reminds me a collection of slogans from the communist party activists in 70's and 80's USSR. In reality, such docs usually start with a threat model (quantitative) analysis (e.g. scenarios such as "Russia", "failed state", "jihadist insurgency", "Argentina-2", etc.), then own forces state-of-the-art analysis vs. identified threats and scenarios, etc. etc. and ending up with the timeline to reach the required numbers of various kinds of equipment through the lookahead period.
I am sure such a real (and top secret) document exists and is regularly updated, while the published one is rather for a general public, kids and civil bureaucrats (like EU).