If you have an electric motor that's supposed to speed up, slow down, reverse, spin fast etc., all on a schedule, it's a no-brainer (pun intended). It's usually the pump that fails, but the controller-cards often fail too. Pumps and controller cards are, of course, outrageously expensive.
These things are supposed to fail. Back in the day, they were much more reliable. I don't think it's "smart" tech that has made them less reliable; I think they've optimised their designs over the years, so that they nowadays fail just after the warranty ends.
So what I want is kitchen equipment that is designed to last. For example, I bet they could build a washing machine that works perfectly for 30 years, for under £1,000. If they wanted to. It might not have 24 different program settings, but I only ever use one setting.
Yeah, reliable equipment probably is a bit of a nerdy preoccupation; but you'd think at least someone would have a product to appeal to that niche. But nobody seems to want to compete on reliability. That makes me wonder if there is a cartel at work.
[Edit] I actually don't mean to include Bosch in my comments about manufacturers; Bosch equipment I've had has been more reliable than other brands. But they still fail and need repairs much too often.
Re. 30 years: that's how long my mother's Hoover twin-tub continued to provide service.