In theory they should be, but EVs also tend to be more computerised, proprietary and locked down than ICE cars, so in practice I think it's not as simple as that.

For example there was that case of the car that needed an entire new sealed €5k battery controller because it was in a minor crash and blew a fuse.

My garage charges 50% more for labour on EVs. I'm sure part of that is price discrimination but I bet part is also because working on them is more difficult. I would not be surprised if they need to pay more for access to the manufacturer's diagnostic tools too, which are becoming increasingly required.