The difficulty of working on the electric-drive components are massively exaggerated. Independent shops routinely swap worn-out Nissan Leaf batteries with salvaged or rebuilt battery packs nowadays. You can even get a 3rd party replacement pack with a different battery chemistry: https://evsenhanced.com/aftermarket-battery/

And then there's all the people putting Tesla drive-trains in classic cars. They couldn't do that if they weren't able to work on the electric drive.