Djokovic is an intelligent guy and his thoughts are obviously well thought out but i cannot agree that slams should be anything other than best of 5 sets and M1000s finals and Olympics final should be best of 5 sets. But then again i am an old fashioned has been from another era, a relic if you will who loves Test cricket, still thinks Brazil is a major soccer nation (they are useless now), want England to play 4-4-2 in soccer and get it in the mixer, still have a sony walkman and commodore 64 and voted Reform, so all things considered its probably best to go with the total opposite to what i think in the modern world.
I think cricket is a good lesson for tennis. Test cricket just doesnt appeal to younger fans, 20/20 is what they love, and Djokovic is clearly thinking about the prospect of losing younger generation of fans. The world is changing, and like it or not, as much as us old fogies moan about the young the reality is young people will always win ideological battles as obviously they will ultimately be the ones in power so we do have to ensure they remain engaged in the game.