I think that is a fair plan. And I think it is fair to say that there are small adjustments to be made with any strategy. The problem is that the potential variables for SMALL adjustments are just too many to list here. That is why broad scope advice is difficult to give. That said, most people, without an in person GamePlan structure (which we will be offering with schools, etc. btw once the book is released) should heed this advice to shoot lower scores. It is easy enough to pick an exact target in line with your start line in order to finish your ball in the center of the green. The statistics, very much, speak for themselves.
I second this. Obviously I don't have the experimental evidence you guys are going to report, or even the nice personal long term data @MS256 nicely quotes above. But just speaking from the analysis I did yesterday, I had to stop and think a decent amount about how to present the data since readable graphs have to be 2D but there are a TON of variables. This is a many dimensional problem. Like I said above, I tried to shade all the variables I didn't show varying strongly towards favorable towards aiming at the pin, but there are still a ton of variables.
There are various combinations of GIR %age differential and elements of the green and layout leading to differentials in 3-putt percentages, birdie percentages, and U/D %age, and of player ability and propensities that lead to the optimal aim point being in various places from center of the green to the pin or elsewhere on the green. The point I think @david_wedzik was trying to make with the OP and that I was supporting with my analysis is that the aim point that minimizes your expected score is almost surely significantly more conservative than we all like to think. Our unrealistic opinion of our own skill and our selective memory of the gratification of the times we did make the aggressive, non-optimal play and hit perfect shots and got the birdie pull us towards estimating the optimal aim point as way more aggressive than the true optimal aim point.
No one is actually arguing that the literal centroid of the green is always the optimal aim point for all combinations of all the variables. That's a straw man interpretation of the argument to support ignoring the fact that you're probably playing non-optimal, overly aggressive lines.