I was always convinced of that fact. I was one of the very few Sherlolly shippers out there who firmly believed that it would become canon. I knew I could be wrong, of course. But I think this is it. Or rather as close to canon as we can get. To me, the Final Problem confirms all of the suspicions I’ve ever had as to why they wrote Sherlock and Molly the way they did. Take note that what follows is obviously with shipper goggles on. But still.