@theluckiest my dd school does this. They tell the class to remember how to form a sentence using all their grammatical terms in one writing piece to ensure maximum marks in tests. The dc then tend to learn set sentences instead of actually applying the grammar to a situation that needs it.
But @nosyupnorth if you want to specialise in anything you can. You can learn it in as great a depth as you choose. Learning what a fronted adverbial is (as an example) is not exactly difficult when you're older, so it seems madness to apply so much time to the learning of such things when other (more interesting subjects) things are not being learnt.
It could well be that my knowledge of things like who wrote what piece of music in what era (all things taught in school) has stood me well in life. What artist painted what painting and why.
Things like this show education as well. Indeed, even subjects like Latin, a fantastic foundation in a great many languages, is ignored in favour of every dc knowing what a relative clause is. Dull education imo. But obviously a number of people believe this is a good use of teaching time so it's been interesting to read through the various opinions.
@clary I didn't know what a verb was and in about two minutes of French class, I knew what a verb was. It's not difficult. But it wasn't necessary until I learned the new language. Therefore imo, teaching a class of 7 yo what a verb is seems such a waste of time. I bet it doesn't take a few minutes in year 3!!
I don't work with anyone under 30, I am clearly ancient in grammatical learning terms.