Okay, bear with me here as I try to explain...which I think will be easier to do with you since you're acknowledging that the 180 rule isn't an absolute.
Agreed. And for our own purposes here I will try to focus primarily on it in terms of cinematography... in this response.
But let's focus for a second on creators who adopt the 180 rule as a practical absolute because of the belief in clarity and making it easier for the audience. Depending on how much that creator prioritizes making it easy for the audience (or distrusts the audiences ability to follow along otherwise) can easily effect the artistry of the cinematography.
I watched these shows and the filmed conversations were reduced to eye level medium close ups, or cowboy shots, on only the individual currently speaking, only cutting to the other person when it was their turn to read the dialogue. Dialogue that focused on telling the character's reaction instead of showing it because the camera wasn't on them at natural points of reaction. The camera never lingered, it never shifted in perspective to create an emotional weight or add mood. It only focused directly on the individual speaking...eye level.
Establishing shots, camera center and eye level at CBS. The CW did a little more with it's transitions and establishing shots but the actual scenes were the similar banal pattern.
It was my conclusion that this wasn't artistry, it was repetitiously adhered to, across multiple episodes, for the sake of some determined level of clarity that needed to be constantly held to by someone in the creation process.
And to use my wife as my control subject, it's her fairly steady of diet of these shows, that simplify and simplify, in pursuit of easy to watch goal, that means she can't enjoy an episode of something like Mr.Robot or Hannibal because the camera is actively doing more than she's accustomed to.
She's been doing the visual equivalent of sitting and now she is being asked to jog a bit. Her animal brain isn't trained to quickly recognize/focus on a shot of a cutting board for 30 seconds as the camera milks a Dutch angle.
It isn't that she doesn't understand the perspective tilt, her language of cinema is reduced so she can't attach a short hand to the effect.
It's a dumbing down of the visual language.
In my opinion, the argument is basically a variation of the "show don't tell." mantra.
If the adherence to clarity means a scene where a principal takes a student in the hall to tell them their mother died in a car wreck is filmed in cowboy shot/close up with the camera only on the person speaking. It can only have one type of visual effect, even if it was well wrote and well acted. We're being told the narrative thread.
However, if the scene starts and the camera pans backwards and away from the two before the conversation really starts, we can make out nothing but the opening phrase " I'm truly sorry to ..." We hear nothing the farther we get. The camera stops 100 feet away and lingers until a locker shuts loudly off camera . Then the students body language reflects the news they're being given.
The second one is more visually challenging and requires more interpretation from the viewer but I argue that as simplistic as it was, it shows the narrative.
I hope this elaborates more on what I mean by "pushing". It's not letting the short hand of storytelling get so simplified/dumbed down that it reduces our possibilities as creators.