I would disagree with this. Azaz was specifically referring to brand marketing. It is of long-term strategic value to cultivate and defend the Tesla brand. Not all advertising is about short term demand response, but if we look at the ebb and flow of demand over the whole year, there are definitely times like Q1 Model S/X deliveries when a little advertising pulse to boost net order rates would be beneficial.
Indeed, particularly since at any one moment most people are not in the market for a new car. They wait until problems develop or the odometer reading becomes excessive. So even if production is not yet quite ready to handle a demand boost, it still would be worthwhile through occasional advertising to plant seeds in the minds of those people who in time will become car buying prospects.