It more suggests that these updates are NOT made in real time. I find it somewhat unrealistic that Tesla is able to manufacture and paint and assemble a P85D in three days.
My car went from production to complete in 4 days (3/2 - 3/5). To build 1,000 cars per week they may actually be building cars in 3 - 4 days. Also the idea of what it means to build a car to order may be different due to manufacturing optimizations. Quite possibly there is more prep work that goes into building the car so the part we see of production to complete is a lot less work than before.