Earlier quoted context omitted.
Allegations of insider trading are not the same as convictions of insider trading. No publication should be in the business of allocating criminal responsibility in advance of legal proceedings. If a crime is suspected then it should be reported to the authorities. https://en.wikipedia.org/wiki/Presumption_of_innocence
I don't understand this response. Certainly they shouldn't say "Mr. John Smith is guilty" if a court hasn't found that. But there's nobody in particular being named here, just clear evidence that someone must have done it. If the police find a dead body, should newspapers pretend the victim might be alive somehow to avoid allocating criminal responsibility for murder?
But it is a higher and more restricted standard to say a crime has been committed. Journalists can uncover and publish evidence that a crime has been likely committed.
Journalists cannot make a legal determination that a crime has or has not been committed. This is left for courts.