Rockbilly: for most people I would agree with your statement but most all the short barrelled snubbies I have shot and played with have demonstrated accuracy potentials far beyond 25 yds. I have found, as have a buncha old guys I shoot with who are all the same age (mine and older) that the basics of sight picture, alignment, breathing and trigger control apply to all length handgun barrels, not just the longer ones.
Most of us (my particular group of old guys) agree that the sights on the S&W snubbies are regulated to 25m. My 2" (actually 1 &7/8s) snubbies and a 3" Ladysmith I play with all group, and I mean group, at 25m with standard pressure loadings, to point of aim. Where the fun comes in is trying to hit further out and with steel plates it is a hoot. Get a couple of 12" round, or square (your preference) steel plates and set them up at 25m.. When you have had enough dongin' the gong with wadcutter target loads, move the plate back to 50m and get serious with standard pressure 158 gn slugs. When you get tired of being successful at 50, move it further back and keep going until you run of out front sight, that's when you have elevated your barrel to where you can no longer see the target over your front sight. If you like the challenge then pick a aiming spot somewhere above the target and ring in the holidays the right way (lolol).