That site is full of false claims with zero sources to back up those claims which is pretty funny seeing as that article is claiming to be written by a retired corporate attorney. The site is also chocked full of SEO tricks which is possible why it was the first result that came up for you. For example on 5. the word drone is stealthily a link to another irrelevant article about drone deliveries on a different as sketchy site. Link hiding is a well known trick to gain the system and bump up your page.
Maybe you should read the owner manual or even the article that you are commenting on. The doors can be manually opened but ONLY from the inside of the car. Not something you can expect a 20 month old child to have the capability to operate while being strapped into their car seat.