Perhaps you missed the point: An entire country's worth of customers had a product they paid maybe $1,000 for become completely useless all at once, for no good reason. And this was at a time that software came on floppy disks or CDs in shrink-wrap boxes, with updates maybe once a year; no downloading bug fixes over the internet in a few seconds. One can only imagine the cost in dollars and reputation to Adobe, and the pain caused to customers. Even if the fix involves flipping a single bit in the binary, there are days worth of manufacturing (making a new "golden master", duplicating floppies / pressing CDs, typically done by a third-party who may or may not have room in their schedule), boxing and shipping it all, etc. It was huge and avoidable, and due to someone(s) specifically evading the sanctioned flow of production.
Think of it more like "Ha ha, after it was QAed, I hacked a picture of my cat into the masks for the new Intel CPU; who knew it would mess up some capacitance and change some critical timing in the barrel-shifter? Oh well, the fix is easy, and all we have to do is send a new chip to everyone."