People are highly resistant to change, and it shows in posts like these.
Without knowing any facts, we often envision the worst case possible and in our minds immediatly reject new items. Usually want to maintain a status quo that we have allready figured out.
There are lots of posts about owners crashing their own cars with unintended acceleration, where they press on the accelerator instead of the brake. Perhaps Tesla is tired of this happening to their cars and has invented a better solution. Your car will use it's sensors and pre select the appropriate gear choice. If the driver does not like this choice, they can override it by pressing a button on the display or on the center console. Right now the gear selection is a dumb lever. The driver must turn on their car by stepping on the brake, look at the center display and push or pull a lever until the proper gear shows up on the display. Would be nice to have the car preselect the gear and driver would only need to glance at the display to confirm and go on their way.
Imagine that this will initially be strange for owners, but withing a few drives will become totally natural.
In the past, most all cars were manual transmissions. People were resistant to turning over gear choices to an automatic transmission. They wanted that clutch and their experience to maintain complete control of torque applications. Felt that they were better able to manually select proper gears than leaving it up to the automatic to select the gears for them. Claimed that they could look ahead and preselect the proper gear and "beat" the automatic. They felt they could get better fuel economy and performance by manually rowing their own gears. Over the years this has become old thinking, and modern automatic transmissions can usuall beat all but the best manual drivers for fuel economy and performance.
If FSD is to become a reality, then cars will need to be able to sense their surroundings and determine which gear to engage. They will need to be able to pull out of a garage or parking space, cruise to their destination, pull up and hook up to charging stations, parallel park, drive backwards as well as forward etc. I believe that the new transmission selector will be a step that it moves Tesla forward in it's goal of Full Self Driving.