Ferdinand appeared to be hit by a coin following Robin van Persie's late goal at the Etihad Stadium and City goalkeeper Joe Hart also had to prevent a supporter from confronting the United defender.
It was put to Crerand during an interview on BBC Radio Five Live that listeners had called and texted the show to suggest that players should tone down their celebrations in front of opposition fans, but Crerand was disgusted by the insinuation that Ferdinand had any responsibility for the incident and repeatedly challenged the station to say how many people had blamed him.
"Who said that? That is ridiculous," Crerand said. "What planet do they live on? That is absolute garbage. How many people have phoned you up? One, two, three? How many? Why make a statement like that if you haven't got (the number of listeners) to hand...if you haven't got the evidence?"
Asked to respond to the suggestion that Ferdinand could have provoked the attacks, Crerand added: "I think the point is absolutely ludicrous."
At one point Crerand asked interviewer Chris Warburton: "Is this a publicity stunt? Ask me a sensible question and don't talk stupid, asking me daft questions about whether fans should celebrate or not."
Warburton's co-presenter Rachel Burden interjected to suggest to Crerand that there may have been a misunderstanding of the question that had been asked.
Crerand demanded again to know how many people had contacted the show.
"How many texts? A million? Half a million? A hundred thousand?"