Mostly agreed, but not entirely sure about a few things.
Yes, all these legacy auto makers introduced their EVs even though the number of available units were severely limited. I don't think all the other auto makers have caught up with Tesla yet.
All they did was gut out ICE components and slap the motors and pouch batteries with midcore battery management system. Sure they got the fit and finish,, interior parts since they were already doing it for several decades now, but none of the other EVs were not proven over time like Tesla did. On paper, it looks like the others are catching up fast, but I think they just produced half fast products on the market just to introduce EVs before others.
They really don't have long term "EV" test yet since they are only 1-2 years old, and not many average consumers were able to buy them due to their lack of built units.
IMO, all these legacy auto makers doing their EV approach backwards. They design their cars with not mature battery/motor/BMS technology and package it with fancy distractions, such as HUD, adaptive suspension, carplay, interior/exterior while Tesla focused on the battery/motor/BMS side first and then slowly catching up the other department.
I am not sure if 5 second Ford and 10 second Hyundai/Kia can be real performance leaders. If they put limits on their performance side, that means they couldn't really solve the issues/problems with their battery/motor/BMS technology while Tesla can do all that with no limit/restriction.