I would submit that talking with customers on the phone is not a very productive use of their time. Tesla is overrun with so much business, they have resorted to removing as many inefficiencies as possible. This includes huge time suck of speaking with customers on the telephone.
They want you to use the Tesla app on your smartphone. They go out of their way to make that experience as convenient as possible. I was out to dinner last weekend, Saturday I think. My wife mentioned a Passive Restraint System alarm she had been getting in her Model 3. I opened a service ticket described the problem, and scheduled a mobile service visit for a couple days out. The next day I got a message in the app, confirming the appointment for the next day. The tech showed up in my driveway during the allocated arrival window, and replaced a broken wiring harness in the driver's seat. This was the first service of any kind on our Model 3 in three years.
I did all this without speaking to a soul on the phone, on a Saturday night while out to dinner. Tesla performed the repair in my own driveway (we live 20 minutes from the local Service Center). I was present for the appointment, but I did not have to be. As long as the car was accessible in my driveway, my presence was not required.
That is how it is supposed to work. If folks continue to demand to call in to talk, or drive in for service, they are going to be highly frustrated. I would suggest they buy something else if they want traditional sales and service. It is not gonna happen with Tesla. Personally, I think it is a huge improvement over the old way.
I have owned three Teslas, and have two on order. AFAIK, I do not have a sales rep, at least I sure don't know who that is, nor do I care.