I don't see that I was especially lucky with the ICE components, I did all the scheduled maintenance plus some other misc things (water pump x2, bad transmission bushing, etc.) (Oil and filters just don't add up to all that much - I followed the maintenance schedule using high mileage synthetic and high-mileage filters and the total cost was under $100/year at a dealership.)
I also don't see that I was especially unlucky with the non-ICE components, I've got a 13-year sample size of steady, unremarkable maintenance to tires, paint, brakes (these always corroded from salt before they wore down, so no real EV savings to be had on brakes), misc trim pieces, etc. Looking at my Excel sheet of maintenance, I'd expect these costs to be higher on nearly any EV, just because the ICE was a cheap econobox with cheap parts (e.g. tires were small, TPMS sensors were cheap, only 4 lug nuts, etc.), and any newer vehicle is going to have more parts that need replacement/repair, and those parts are going to be more expensive.