I think he knows that someone criticized him as exploitative and money oriented, in the beginning he promise to stop the subscription for a month so subscribers would not feel cheated from the late release (late release is pretty much the new standard for the recent updates, it's expected).
Later on he changed his mind, he instead promise he'll release it for free so anyone who previously subscribed for the previous work-from-home super short update can unsubscribe-the money is charged every 22nd, this way he can provide free update without depriving himself from the subscription money.
Not sure if he can be much more shorter than the 0.75a update, that'll be too much, but how knows? hard to say.