Business 10 marker clarification

Ive seen videos and people on reddit talking about the structures for the business 10 markers in both P1 and P2 with definition, 2 advantages and 2 disadvantages and a conclusion with evaluations of the choices. But recently my business teacher graded everyone extremely low for the responses and he said to reach a level above 8/10, 6 total body paragraphs is needed. I thought it was bs cause who tf can write 6 body para in 15-20 min, so I would like to hear from you guys on the strat that got you guys a high mark for the 10 marker.