I understand correlation. I have 15 credits of doctoral level statistics and research methods in my educational background. GW's statement was idiotic and he deserves to be mocked. Ceteris paribus, free throw shooting matters. Weak free throw shooting teams who are successful have other significant strengths; good free throw shooting teams who aren't successful are diminished by other weaknesses. GW (and you) appear to understand just enough to have confidence in your own foolishness. As I recall, a similar simplistic analysis years ago on NBA data revealed that turnover rate wasn't correlated that much with winning percentage. Are you going to argue with a straight face that turnovers don't matter?
So all we have to do to make the final four this year is start shooting 90% from the free throw line. Excellent, hopefully Pitino spends all of practice doing that.
No one has argued free throws don't matter , period. Just that there are far more impactful things that matter more- assists, turnovers, rebounding, 3 point shooting, even getting to the FT line for example. You can have an average FT team that is great at those other things be successful, but if you are average at those other things and great at FT's you probably won't be as successful.
The point being, the Gophers and most teams have much bigger issues than spending 4 hours a day working on free throws instead of running a competent offense and defense. If Pitino said tomorrow all he was doing in practice now was shooting free throws. No more instruction on offense, defense, rebounding, etc. he should be fired on the spot.