Maybe a bit, but overall my numbers line up with what most sources give for average TCO maintenance numbers. But really, the car was just getting old - having a couple random things to fix per year on a 10+ year-old car isn't unusual. (And my ICE component maintenance was quite low, so you could say I was lucky there, rather than unlucky.)
I think it's your maintenance numbers that are way off, "zero maintenance other than tires" doesn't line up with what any reputable source gives for TCO maintenance costs for EVs or non-ICE components.