True, but the poll on the boards suggests very few people downgraded and even fewer cancelled.
Frankly, a lot of us made noise because there were a few important things which upset us, but that didn't mean we *wanted* to downgrade or cancel.
Now, the fact that there were only a few such things, and it's a small company, means we figured they might actually fix them. A bunch of us are stockholders too, and would like Tesla to keep its reputation -- reputation is worth more than gold. And indeed, Tesla has *already* fixed some of the issues raised:
(1) It is now clear what the price for the Performance model is;
(2) It is now clear that the Signature has a substantially different, and more expensive to make, interior from the Standard
(3) It is now clear that a number of things are standard even without the "tech package"
Dealing with the wheel downgrade ("but Tesla keeps your money") issue would probably satisfy nearly all the remaining unhappy Signature reservers; offering Supercharging to 40 kWh buyers (even at a much lower "miles per hour charged" rate, it would still be a vast help) would satisfy most of the rest. That's not really very many issues.
They still need 3-phase home charging for the European market, of course.
A reputation for unaccountability, nonresponsiveness, and price-gouging, is something to be avoided. So are other unpopular mistakes. Part of the reason for making noise is specifically to help Tesla avoid these. *If* we, the early adopters, help Tesla get things right, *then* Tesla will have a much easier sell when it comes to the more discriminating general public. A low rate of downgrades doesn't necessarily mean that the noise was gratutious; some of it is of the "I'm still buying it, but I can't talk anyone else into it any more unless you fix this" variety.