So, a conservative cumulative 5 hours of pre- & post-flight briefings + 95 hours (ahem) of home study will satisfy EASA.
You haven't got to satisfy EASA, you've got to satisfy the 'competent authority' that approves the course structure. The CAA might approve a course comprising 95% unsupervised home study but, then again, they might not. Which would you put money on?