Same here and like many others - SEN has become irrelevant to me too. But re Mince; I agree with your comments. But firstly, I want to ask what actually qualifies Mince to be respected or even noted as an AFL commentator? Mostly the commentariat consists of mostly great former players (although the definition of 'great' being quite arguable). Then there's a handful of AFL or wider sports commentators who may call the game and insert some opinion or pose questions and views.
But, as far as I know, Mince has no AFL playing career of distinction to qualify in the first respect. (Really cannot imagine him playing myself)
No, he seems to draw upon kudos as a sports journalist, one of the 2nd category, thereby qualified to make analytical comment. As you say, " ... serious ABC sports presenter and a journalist."
However, the first and foremost attribute of such a professional is OBJECTIVITY. But Whately disproves this qualification frequently - both by his RFC prejudice and along with his Geelong rose-coloured glasses bias.
Such a poser in the end - full of self-importance only.