When a my 1980s Ford, my one friend who pays his electrical bill + has a craigslist-sourced machine shop can fix it from steel+aluminum stock, and also teach me how to fix it myself.
When something with power electronics breaks, my option is to buy new power electronics from a big company or trash it. My many friends with PhD/industry EE experience are unable to fix it nor tell me how to fix it with simple tools.
The complexity of the latter therefore seems greater in he colloquial sense than the complexity of the former.