Amazing is a bit steep Peaseblossom, and of course schools vary in quality and ethos with changes in leadership. So: your adjective not mine.
True, none of mine have had essays in at this stage of the academic year.
Nevertheless, in this very odd year, the bulk of the weight is bound to be placed on what came before the announcement that exams were cancelled and very little on what came after. It's just common sense. I don't even see why that's going to be a problem. Schools track all the time. All half way competent teachers should know exactly what grades their students are currently working at right now. If they don't, then maybe they're in the wrong profession.