You not only have to take a hand off the steering wheel, but also look to see which lever you want/need to press. If I'm changing the temperature I know where the dial is, but I also have to look to see what I'm setting it to.
I'm surprised people here think analog controls are a bulletproof solution to the same problems you're criticizing Tesla for. I have a hunch that if there were YouTube videos watching people change climate control settings in their car they'd not only be required to take hand off the wheel but also look down and away for a small period of time. Tesla's isn't perfect but you get to keep both hands on the steering wheel and head looking straight, but down ever so slightly.
We're criticizing bad UI design and the attitude that digital touch interface is automatically without fault and order of magnitudes superior to whatever was established in the last hundred years.
I don't know if anyone has said digital touch is superior, I don't think it is. It's just a different way of solving the same problem. Can it be updated in the future unlike analog? Yep. Can you feel it with your hands like you can with analog? Nope.
I feel like I see more people saying first that digital is terrible and it should be analog, that they'll never get a car that has digital. The reasons they list are still true for analog though.
It doesn't matter if they "say" it. They act like they do and it speaks just as much.
Everywhere I look (modulo self bias) I find people that are in awe of the digital touch interface. In contrast I don't find people in awe of analog buttons. They just use them and complain when they don't work for whatever reason. Digital interface touch "buttons" don't work on cars. We complain. It's simple.
The demo person is constantly looking at his screen instead of in front of him.