What you're saying may be an important detail for car enthusiasts but that's mostly irrelevant given the context. From the business side of things what matters

What you're saying may be an important detail for car enthusiasts but that's mostly irrelevant given the context. From the business side of things what matters is that the Model 3 outsells all of its competitors at its price point. If anything, the fact that a car that uses cheap plastic is outselling the car that doesn't use the cheap plastic at the same price is phenomenal.