I can understand that.
But I can also see that it's six of one, half a dozen of another, in the sense that from my personal perspective, I'd rather newer officials focus on learning the mechanics consistently, in the sense of knowing (and learning) that no matter what game, what level, if you're the wing on the home side (L), you're going to drop back into punt coverage, rather than having to learn WHEN you're the L, you drop back, but when you're not, you don't, if that makes sense. I think it's better to teach consistency, even at the expense of a little complexity. My reasoning is that I'd rather not have a wing 'forget' to drop back on a punt, for example, because they weren't used to it and miss a crucial call; I'd rather they learn to adjust at halftime sooner rather than later to minimize the opportunity for being in the wrong place or looking at the wrong thing.