I've mentioned this already, I could give a crap what you or anyone else is shooting or how they come to decide on a charge. What I do care about is safety. 1 ounce of powder has 437.5 grains in it. An once also has 28.3495 grams in it. A gram has 15.43236 grains in it. Now if some neophyte that has zero idea of what this means comes on site and reads your argument here and dumps 50 GRAMS of powder down his barrel with a 400 grain lead bullet, imagine the eye opener he's going to get. That gram weight equals 771.6000 grains.
As far as I am concerned, anything "gram" on this site should get the **** treatment so people don't get confused between grains and grams. And if you think for a second that you will get a more accurate load using grams instead of the standardize grain, think again because scales, even the best digital will not register to the fourth place after the zero when weighing BH209 or most smokeless powders..... the powder granule size is too large for that fine of a measurement and that far under the zero in weight isn't going to mean squat on paper.
To a new-comer, powder handling can be confusing enough without having to add another un-necessary weight measurement to the equation, especially one that has a very close similarity in spelling to one that has been standardize for years. You're apparently quite wise, but not all of the new comers to this sport are.