He used to be 5-2 in slam finals and on his way to the famous 10-2 in slam finals which Borg, Sampras, Federer and Nadal were at one point in their careers and they are part of the 11+ slam winners club of the open era. Looks like to end up with 11 or more slams in the open era you have to be 10-2 sometime during your career in slam finals but with 6-6 Djokovic looks more like following the steps of Lendl, Connors and Agassi in slam finals.
Your logic is ridiculous. Just because Borg, Sampras, Federer and Nadal were at one point in their careers 10-2 in slam finals does not
mean Djokovic must too have 10-2 in order to win 11+ slams.