There was already anecdotal evidence that Webbon was a highly effective weapon in ensuring individual trainers and racecourses made an informed decision on whether to join this week's re-launch.
His lucid contribution to Channel 4's Morning Line two days ago won much acclaim among the racing community and even seemed to change John Francome's view mid-programme.
Crucially, Webbon outlined what a catalogue of chance and coincidence it would take for the racing industry to dissipate foot-and-mouth disease.
He argued the seven-day, self-imposed suspension had now enabled the sport to establish measures that "create an environment at a racecourse to make spread virtually impossible".
His appearance could hardly have been more timely as columns in both The Sun and The Telegraph had that morning strongly denounced racing's rulers for attempting to restart the sport. In a telephone poll on the Morning Line, 66 per cent voted against staging the Cheltenham Festival.
Irish trainer Ted Walsh accused Britain of "not doing enough" compared with his country's extreme measures to stop spread of the disease.
Webbon today stressed that among those who object to racing, and more particularly the Festival, were many who accepted the sport poses no risk but still deemed it inappropriate to go ahead.
"The feeling akin to not wanting to stage a party next to a funeral would be a perfectly reasonable emotional response," he said.
Leading Lambourn trainer, Nicky Henderson, said: "Peter Webbon supplied concrete evidence that if racing did resume, especially in an urban area like Sandown, it would not put anybody at risk.
"But we are very conscious of racing's image and our responsibilities to the farming community, with which we live side by side."
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