First off , not all autos are created equal, as it seems to be a common misconception. Just because one auto began flower at week 2, does not mean the next cultivar will. Some begin to flower far along after others. I have raised autos that finish in 60 days , and others in 120+ days.
Genetics are
I will respectfully agree to disagree then, because this has not been my experience in the many years that I have raised , and breed autos. An undisturbed root mass in a proper sized aerated pot , has simply produced the best results in my organic approach of growing autos since the early 2000's.