Thing is, these questions about 2002 riots are always loaded.
You have to answer these questions diplomatically, or atleast thats what Modi thought he was doing, if only for the puppy metaphor! If he had simply said that "yes I regret it", people would go, hey look this guy regrets it, he is feeling the quilt, hence he was directly responsible for the Gujarat riots.
Mind you, he didn't just talk about sitting in the back seat, he said whether you are driver or a mere passenger, when you run something over you feel bad. So obviously he ll feel bad when 1000 or so people died, only a maniac would say that he isn't saddened by such a thing. Its open to interpretation depending on which side of the divide you are on.
Funny how there is all this ruckus about just a metaphor and nothing about "Baccha Baccha Ram ka, Raghavji ke kaam ka" gem from Digvijay Singh.
I have no idea what on earth you trying to say, try again.