It's supposed to be ironic - if Tesla were "only better cars", then people wouldn't bend over backwards to give Elon every benefit of the doubt. A "nicer car" doesn't get you to the point where people worship your just born baby on Twitter. Teslas are amazing cars. However, Tesla is valued so much more than just delivering a better horse, and I don't think they could have scaled up as quickly had they not been financed by memes (I don't want to downplay Tesla's amazing execution up until this point, they have taken the opportunity they got and delivered, they could have easily squandered under the weight of Elon's promises).