I am with Safety Concerns here. Look at my handle. Every now and then I change those heat generating lighting sources. Guess what, they get very hot and there are lots of them in the cabin.
As to the shade and sloping windows, I am reasonably sure that you will struggle to see any sloping pax cabin windows and it does not go pitch black when you are in the shade. Now, in the morning and evening, you may get direct sunlight through the cabin windows, but other than that, you are in the shade of a big metal tube. You will see this in action, if you turn the cabin lighting off; the cabin takes on the appearance of shade. Maybe that is the solution, cabin lights off and blinds open, then everyone is happy?
As to whether it is antagonistic, I doubt it, unless you make it. There are fights and there is closing a dozen blinds each, no matter how pointless the exercise is.