Are we sure about that? I tried CPU QB acc at 10 (just to see if it would change something, it didn't...), and they showed the same variety of play calls that I have seen before. I'm not saying that you're wrong, but the vast majority of slider guys doesn't leave the sliders untouched at all. After all these years there should be a consensus on if gameplay sliders do change playcalling, I would suppose.
After all that should be easy to prove by just making a list of the plays called with sliders at 50 and with sliders at let's say 10.
Again, I'm not doubting your knowledge (I enjoyed King's set on M16 a lot), but I'm surprised how much uncertainty there still is after all these years.