The other side of this is as we get later into October and certainly by November, the sun is very much in the eyes of the coaches on the sidelines on the current Visitors side. This is especially true for the rare 2:30 starts.
Yes, the play calls come from the skyboxes and coaches have the best sunglasses, but you'll still see those on the sidelines with hands, arms, and playsheets up to shade their eyes.
Whether this leads to anything measurable in terms of X's and O' s who knows. But it's something that does happen with the current arrangement.
We're on the "sunny side" and it's just fine. We don't want to change.