

Yeah, even cheap microcontrollers nowadays with support for clock functionality have an ultra low power mode were the only thing running is the clock crystal and the clock functionality which uses so little power that it can run for years from such a button battery.
The thing could do the same as my stupidly cheap alarm clock that has some batteries as power backup and just keep on counting time without displaying whilst mains power is down so that when mains power comes back up it still has the right time.
The extra $1 for the hardware needed for it is hardly going to matter next to the overal cost of anything but a stupidly cheap microwave.




Actually it’s more spectacularly stupid design than merely asshole design.
Risking losing potential customers at the last step of the customer acquisition pipeline is incredibly idiotic - from the beginning of said pipeline (for example, an advert being shown to a person) until the end (the customer actually pays for something they bought) there’s can be a ridiculous percentage of potential customer which drop of (something like 99.9%+ if it starts at “show advert”)
As for somebody that’s confronted with this at a checkout, just drop that shopping cart and go somewhere else (also valid in real life when you’re at the till and they do something shitty - just drop it and walk away) since that’s literally the point were shunning that store does them the most damage.