Yes, writing this could go badly for me, but it occurs to me that Tesla not advertising may address generalized complaints about Tesla in the past
Common talking points (real or imagined) :
Lack of charging
Lack of service centers/ availability
Lead time for car
Tesla has grown its service and delivery, but is still not at the location saturation of traditional OEMs, especially if you lump the major automakers in one group.
Tesla has grown its Supercharger locations, but they are still not as common as gas stations, especially if you lump all the brands together.
Tesla has increased its inventory, but not to level of traditional OEMs where the desired model, trim, and color combinations may be either on the lot or in the next town over.
My point? Tesla is better and continues to improve, but its still lumpy. There are places with better coverage of centers and chargers and areas with less. These areas also have something else... more Teslas. The inherent result of more cars is more people seeing the cars and checking out the cars and buying the cars.
Who doesn't see Teslas? People living where coverage isn't as good.
Who do you typically advertise to? People who don't know about your product.
See where I'm going here? Tesla and new owners are well served when volume and regionality track with infrastructure. Tesla is still sparse. Tesla advertising to the unaware could increase demand the most where experience is the worst (relatively speaking, I'm not claiming it's bad). Else, they advertise into a more saturated market increasing the load on the existing infrastructure.
Delivery and service locations:
Supercharging locations:
Then there is the buyer type. Transitioning from ICE to EV is a change. Better to have new owners who understand that versus unaware ones who get annoyed at the differences once they find them. In this, the opening of Superchargers to other brands is advertising to non Tesla EV owners who might choose Tesla as their next EV.
Supercharging open to others:
