You don’t get an Oxbridge offer by doing the bare minimum though either? I’m not sure what your point is here?
As for all these deadlines on the EPQ.., as far as I recall there were only two deadlines once they actually started on the real thing. The teacher was allowed to give written feedback on the literature review in about Feb, I think, then again one the first draft of the whole thing. That’s it. Otherwise they just got on with it in their own ways. But if you missed the lit review deadline, you were off the course, yes,