Beg to disagree, other manufacturers are catching up but Musk's playbook since Tesla's inception has been to consistently overpromise to the nth degree, so it's not anything new. Remember it took 2-3 years from the Model 3 announcement for them to ship in any meaningful number (2015 -> 2019). Same thing currently happening for the Cybertruck, Roadster, Semi, etc. Are they being too ambitious? Certainly. But it's not really anything new for Tesla. If anything having Musk's attention being frayed to various companies is probably a benefit, from my anecdotal personal interactions with top employees at SpaceX and Tesla. A lot of employees left because Elon is a great figurehead and product leader but an annoying micromanager.