When the three point line was introduced in college it was too close. They figured that out and moved it back. When the analytics suggest you should shoot threes over good mid-range shots, the three point line is too close. Move it back so that the expected value declines and you should stop NBA games from being three point chucking contests. IT does not seem that complicated. The current length is not sacrosanct.
Now the one complication is the length at the corners. The line is already shorter there leading to an analytic bonus for the corner three. Again, this seems simple to fix. Move the line out to where it makes sense and keep it that distance all the way around. Given the width of the court that probably would mean that there would be no corner three. Fine to me. No more ability to park a median shooting player in the corner and call it good offense.
Now the one complication is the length at the corners. The line is already shorter there leading to an analytic bonus for the corner three. Again, this seems simple to fix. Move the line out to where it makes sense and keep it that distance all the way around. Given the width of the court that probably would mean that there would be no corner three. Fine to me. No more ability to park a median shooting player in the corner and call it good offense.