> the use of imprecise cup measurements rather than weights It really does not matter. Both because variation doesn't matter and because weights vs volumes are not going to give a big enough variation to really be detectable.
It doesn't matter for small items like salt or baking soda, but you can get pretty different results scooping flour depending on how compressed the flour storage is, and how much the scooping packs down that flour.
There's a reason that every bakery measures by weight. If you value consistency, and recipes should be consistent, you go by weight. You can say it doesn't matter, and in some cases it might not, but the entire baking industry doesn't agree with your statement.