I've owned a handful of dishwashers over the past 20 years and not once has one ever needed a firmware update (or stopped working, for that matter). What is so

I've owned a handful of dishwashers over the past 20 years and not once has one ever needed a firmware update (or stopped working, for that matter). What is so complicated about this device that it might need a firmware update? You can probably enumerate every possible state of this device across all possible inputs in an hour. What's that, they have wifi and TCP stacks and probably "apps" now? Oh, I think I see the problem.