The Scottish Fire and Rescue Service are abundantly aware of the scope of their legislation and it would be rather silly to suggest anything to the contrary. Interestingly, without legislation relating to the common parts, it is virtually unknown for any resident of a PBBF in Scotland to die beyond the flat of fire origin. Nor do they need a new regulator to act as building control verifiers for high risk resi buildings (but then to be fair neither did England, its not like HSE have ever covered themselves with glory in enforcing fire safety legislation).
Those who exalt philosophy as a noble concept and scorn plumbing as a humble profession end up with the philosophy and plumbing they deserve-neither the pipes nor theories will hold water.
A society that under values, under pays, under resources and under trains local authority building control, for whom I have some respect, ends up with the standard of building control it deserves. Maybe HSE could take on plumbing too.