He said that he had the Virgin aircraft sited at all relevant times and there was never ever any chance of a collision.
But Dick, the Tobago pilot misjudged the side on which the 737 would pass. The Tobago pilot's subjective assessment of the collision risk is therefore meaningless.
The objective collision risk was infinitesimally small, not because of the Tobago pilot's judgment of the risk, but rather because there was an infinitesimally remote possibility that the aircraft could have collided
even if both pilots had tried to collide.