It was cryptic, wasn't it - I couldn't tell really whether he was taking a dig at Mandy, or pointing out that if the censor board is releasing a film with whatever certificate, Imam should not be speaking on it's content. Because Imam's dig was definitely towards the audience of the film - he said "agar KKHH jaisi film bhi chal jaati hain", or something. Sorry can't be of more help - Salman often confuses himself too 😆.
In any case, I don't agree with an actor being bashed for his/her choice of work. If a production house is making a film, it's because their homework indicates that they have a probable audience for it, and each to their own.