That doesn't explain things like half a season of not making a single offensive holding call, when Alabama had one of the best pass rushes in the nation. Your counter might not they weren't making stupid penalties and I'd say yeah, they were smart penalties because they were keeping their quarterback from getting demolished by sometimes just tackling the Alabama pass rusher. The refs just weren't calling them. They most certainly were happening though, intuitively one knows you couldn't stop that pass rush without holding, but there were pictures...that level of focus has an effect on stupid penalties.
So, when we combine that proof and then apply the razor...