But the thing is, the fans never say it's a lie.
Battery swaps, Solar Shingles, Alien Dreadnought factory producing so quickly you need strobe lights to see machines, Full-Self Driving, profits forever, robot taxis...these are not lies, they are simply things that haven't happened yet.
Years ago the guy literally walked onto a Hollywood set and demonstrated the Solar shingles. Now they are writing down Solar City and getting in trouble for not producing enough or providing the promised jobs at the subsidized factory in New York. Lie?
Otherwise, though, you are right, and they even prepped for that in the presentation. I always get it done, just not on time. So when this isn't done in 2020... well, 2022 then. They make great cars, IMO, but this stuff is more than a little annoying.