are they also going to make builders responsible when a house is broken into?

Well, if the builder presented a house with no architect's drawings, no wiring diagrams or even proof of a certified electrician signing off on it, and stated that he'd done it himself with no prior experience and a bunch of lads he knows that have done a little DIY in their bathroom before, no alarm, no windows and no door, then yes, I'd say make the builder responsible in that case.

What it may get rid of is the whole idea of "It'll be alright if we rush it, and use people who we have no idea if they're capable of doing the job apart from a quick certificate they managed to cram into two weeks on holiday in Phuket, but they're cheap.". This is pretty much how half the software world works these days.