Looks like another "pro" chop job there, despite a license and all the rest, clearly they didn't matter when the guy who put these in just decided to heck with it no one will see it, and rushed the job then put the covers on and got his check.
Another reason not to trust someone else's work, and to always check things like this with your own eyes and verify it's right.
That job is about what a novice do-it-yourselfer would have done using a "how to" book, but he skipped chapter 5 or something.
Slim, untill something happens- there's no ground there, I'd say that's an issue!
This is typical of what happens, when subs are paid by the house, not the hours, in tract builds.
We moved into our home in October 2012 and immediately replaced all the light switches with new clean ones that my wife wanted... Our switches looked the exact same way. The house was built in '71 though. I asked a coworker if that was normal and he said he didn't know, but that his house was the same way ('51) lol.