okay....we know kingpin is strong, and he defeated bare hand old spider before his pre power tranformations, the pre power trasnformation is no the mistical totem i refer but how spider progressively grew strong with the years,but as said before kingpin is just human, no way he can take spider punchs like this.
And maybe Pete's just a little bit angry that Kingpin hired an Assasin to shoot Aunt May and now Aunt May is now in Hospital dying...you know...just an idea
did NOT! think about it! if peter was mad enough to trow a jeep on whatever floor the sniper was,do you think kingpin face would not be totaly deformed with his blow?remember when spider beated gargan?gargan face was totaly disfigured and gargan has superstrengh.same should apply for kinpin.