My 'new' dishwasher isn't needlessly complex. It's very complex because it uses less than half of the water per wash my older model did, so it has to filter/cycle.

And no issues with it in 5 years. It replaced a dirt cheap, super simple 1980s style single-lever, single button model that failed after <1 full year of usage.

Not everything is broken, it's just cheaper and possible to make shitty things en masse. You can still pay for quality (see: Porsche reliability vs. Chevy reliability).