Maybe he thinks there will be no blowback to hawthorn
In reality I think the real answer is far simpler. Jackson got wind of the report and convinced the people involved that it was in their best interests to make this public, otherwise the AFL would hide it. Consistent theme throughout is the distrust of the AFL. Very easy for Jackson to leverage this distrust to his advantage.
Sad state of affairs all round.
Hoping for a quick, truthful and fair resolution for all. Let justice be done.