I see what you’re stabbing at and I think your insights into the subject are pretty irrefutable. That being said I believe, firmly, that a 20 gauge is still the answer to our man’s original problem. Newer shooters will shoot and ‘pattern’ a 20 better no matter what a Pro trap shooter is up to. Never found it lacking in the upland. Hell I started out with a 28g and a half crazed lab over 2 decades ago now and I think the old 28 probably still in the running as far as body count goes.