This is such a powerful statement from Rob Kirschner. It is science at it's best. Someone (rightfully) opposing an experiment, being incorrect and admitting, without reluctance, shame or regrets that they were wrong.
At the time, Bob's idea was by all available information questionable. But it was right for him to persevere, it was right that he had to face and overcome opposition and it is right that the opposition gracefully admits that Bob was right :)