This article is not making a good comparison.

Most EVs are luxury vehicles. Luxury vehicles depreciate much faster than regular cars. Luxury car buyers care if the car is new or not.

Tesla should be compared to BMW not Ford. Teslas depreciate at similar rates to BMWs.

EVs like the leaf are depreciating fast because their technology is becoming obsolete.

I think it is too early to be sure that EVs depreciate quickly.