Mine have been great as well, and I don't expect proactivity from the SAs per se. But I do expect proactivity in some form during the purchase process. If I regress on my order (a trade-in valuation expires), I expect a notification. If I get a VIN assigned, I expect a notification. They don't do those things.
As for SAs being more active at delivery, I still don't expect proactivity on their part. It's really not their job to handle delivery. I'm two days away. I know the car is supposed to be at the showroom today because I called in a couple days ago. I'm just keeping an eye on the app, which currently tells me that they'll let me know when they have the number for my payment. I think that "letting me know" will take the form of the app updating. Even at the time of purchase, I'm the one who will be letting them know I'm there and ready to inspect, pay and accept the car. They just exist to allow me to complete the process.
I see people who have been sitting on their order for months and I wonder if they're supposed to be doing something - only they don't know it. They just assume that Tesla will proactively guide them through the process when Tesla is assuming that everyone will just keep checking the app. Tesla has stepped away from the dealership model so far that they think in terms of being more of a car vending machine than a company with customers.