No, a dangerous condition does not have to be a non-compliance with BS7671.
A prime example being insufficient sockets, resulting in the use of extension leads and plug adaptors.
There was and still is a requirement to consider the effects of fire when choosing a wiring system and method of installation.
This new Regulation provides instructions on how to comply with the existing requirement.
Unfortunately it targets wiring in escape routes, not wiring elsewhere which is just as, if not more likely to present a danger.