It is funny how this stuff seems so elementary to us but I guess it really is rocket science.

I have had more than a few builders do this to me. I will work with them on a few homes, then not hear from them for a year or more. Then get a call to look at a house (one I know they built) I see very clearly where the electrician tried to duplicate what I had done on previous homes. Only it is all screwed up.
Looking at it from the electrician's point of view, it REALLY should not be difficult to at least get it mostly right - especially if you have several examples of someone's work to copy. My only conclusion is the same as I always come up with for the electricians in my area... they are a bunch of f^n idiots!

And I never have a problem rubbing it in the builder's face when they screw someone's home up. Because at this point, they f^n know better. There is no way they can not know better. They choose to be slimeballs and shysters! And pretend to be ignorant of technology when they get caught on it.
You are all fools who fall for that BS line. THEY KNOW BETTER!

"Gee, why didn't you get the landscape guy to wire the home, I bet it would have been even cheaper and came out the same!" But I don't want to give them anymore ideas.