I understand this line of thinking on a theoretical or philosophical level, but in reality I don't really buy it. Eating a pie on the subs bench isn't a normal thing to do. If he doesn't eat a pie people are hardly going to accuse him of a gambling scam, because not eating a pie in the subs bench is obviously reasonable and totally expected.
Eating a pie however is completely outlandish and will attract criticism and investigations when you admit that you knew your shirt sponsor were offering odds on it.
I don't think it should be a massive deal and I suspect the controversy will die quite quickly now hes resigned, but you (not you specifically PPB but "you" in the general sense) can't be surprised or complain at what has subsequently happened when what he did could be verging on criminal activity.