What's so disruptive on these kind of events is, that companies always used to do development for PR-stunts, or to show off their capabilities and vision for the future, but never at this scale of pure engineering investment.
Drawing a parallel, manufacturers presented rollable mobile devices already a decade ago, modular devices with replaceable components, etc. The archives of Nokia and Ericsson (and others) are full with these kinds of products. Car manufacturers did the same. They presented a vision, not a commitment to a product because there is much more to this than just "being able" to build it.
But it was never economically feasible or sensible to do this at SUCH a scale of engineering cost, and presented with the unrelenting confidence of "this will be yours in two years", despite all the fundamental roadblocks still to overcome.
It appears that this is the most disrupting aspect of their presentations: People are not used to being presented a "vision" of such a scale with so little regards for practical execution.
They like the journey they are taken on, and willingly fill all gaps and doubts with "they wouldn't present this if they didn't think of everything already"
It's a cool demonstration, I'll give them that. From what I've seen online, people don't even seem to consider whether or not they would actually want this, just because the novelty of it. I'd even ignore that and call it good marketing, if that's what they would actually try to sell here - but you need some kind of special invitation access to even get those, while they use this demonstration to boost the pre-orders for a car without the features everyone is talking about (or at least trying to, we'll see how many will actually go for it).
I'm reminded of that time that guy made the Statue of Liberty disappear.
Lots of words to say they built something useless to impress manchildren and investors, get ready for yet another "fell for it again" medal