Kimbo Slice trainer Bas Rutten is standing by his fighter, from the Fight Network:

"Some people cannot win regardless of the outcome," Rutten began. "It’s a no-win situation. Everyone is bagging on him. If people are smart, they will look at the fight. It lasted 14 seconds. It was a flash knockout. It was a weird punch but because he was running in and there was some power on it, it knocked him down. Look, if this guy had come in and it was a 1-2 to the body followed up by some punches to the head and another one to the body and you saw Kimbo standing there messed up and then get hit with a clean 1-2 and then go down, then I say that’s going to hurt him. This isn’t going to hurt him. It was more of a push instead of a punch. It’s not a big deal."

And this poll on NBC Sports seems to show that the Kimbo bubble isn't entirely popped.