The drivetrain in an EV is WAY simpler than any ICE. That alone will provide a ton of reliability. There's pretty much just one moving part in the engine and it's pretty binary. It's either working or it's completely broken.

No more weird running issues where it works just fine to 2000rpm, but at 4000rpm makes that weird noise. Or the transmission rattles a bit at exactly 3700rpm, but is fine on other rpms.

Yes, an electric motor is conceptually simpler. Yes, there’s less moving parts. But the powertrain in modern cars is engineered to a point where it is incredibly reliable and can be expected to last to the point where the rest of the car is falling apart too.

There will be plenty of “weird running issues” from software bugs and electronics failures, which are the worst and least reliable parts in ICE cars as well. An EV is not just a simple electric motor packed into a case.

Finally, as I noted elsewhere in the thread, Tesla is offering the same powertrain warranty on Model 3s that Kia is offering on their ICE cars. Clearly Tesla doesn’t have any more faith in electric powertrains than Kia has in ICE powertrains. If the EV powertrain was really so much more reliable than ICE, Tesla would be offering a standard 250k mile warranty on the powertrain instead of the same 100k warranty offered by some ICE manufacturers.