Considering orders were always done with the known premise of it being less then prompt(due to the nature of it) it seems entirely reasonable for it to be up to the buyer to cancel the order. I'd imagine there'd be just as many people upset about there order getting cancelled (depsite it being a few months 'overdue') then there are people upset about it taking a while and demanding a refund. Refunding everyone and cancelling all of the orders seems the larger of the two inconveniences.
Pretty sure that is how he is handling things. My only gripe is that he didn't make a thread stating that himself with a link to his signature stating such(or just having a signature that says so for that matter).