The trick they haven't learned is how to produce an EV that 450,000+ people want to buy.
But Ford could ramp up 650,000 more units a year (2012>2013) if there was an instant higher demand. That wasn't 2 years. That was 1 year. And it was purely demand constrained. The '500,000' Tesla reservations are not demand constrained. In theory, it should be much greater than 500,000 by now, especially since they are delivering cars in quantity now. There was no guarantee that Tesla would produce the Model 3 in 2016 when reservations were made. It was a gamble back then. Now that people know it really is being built, it should have seen another incredible jump.
However 400,000 people signed up when the Model 3 was still $35k. This was 1/2 price. 50% off sales always do well. Now that people can reserve a $50k+ car, it's not as hectic. When the $35k variant is released, we might see another huge jump in pre-orders. This could be used to generate cash. However, it is doubtful a car company, any car company could make a Model 3 at a profit in 2018 for $35,000. EV drivetrain systems are still expensive, and Tesla is still pre-installing hardware for FSD that cost money. Not to mention a % of sales must be used to support the Supercharging network, debt, and Solar City.
Now, lots of those folk knew it would not be $35k, so they weren't going into blind. But how many were?
I'm not saying this is right or wrong. Some folk could feel duped. At least 14,000 did not care or expected it.