As a Primary PGCE student, English grad, mother of umpteen and former journalist, I can't tell you how depressing this all is from a number of viewpoints. Michael Rosen's blogs on this have been
The majority of my fellow students don't have the foggiest about grammar. Fresh out of uni, they're engaged in a frantic catch-up exercise. The additional difficulty is that most of the teachers they encounter on placement are in a similar situation.
Even at university, I never studied grammar to this ridiculous, reductive level. By all means discuss different structures, to have a specific ticklist of 'you must include x, y and z to ensure interest' misunderstands the way our language works. Additionally, the proscriptive descriptions given by government can be queried.
The current structure sucks the joy out of writing.