Mainly because Novak has bowed to him a lot these last years...
Said that, my mum and dad, truly objective casual tennis fans, despised old Djokovic and adore the new one. I think that's the pattern with most casual tennis fans. Being the showman he is and how nice he is to everyone, people love him right now. I'm not sure which Nole I prefer.
I don't think Nole enjoys being the villain of tennis
He's not happy when people call him one, so I think the current Nole is better....you know, negative comments by others affect his game.