I don't get it. I mean, how hard can it be? These are billion dollar ventures. For god's sake, at least have an intern fact check your press releases for 15 minutes before publishing them.
On the other hand, these repeated basic mistakes certainly help in keeping expectations in check. But I doubt that's the goal of the demo...
(Granted, your point about the desirability of basics, still holds ...)
It might as well be dogfooding, but to me that seems a bit too, hm, say, intellectually honest for what is basically a PR move in a hype market.
On one hand:
Marketing copy should be word-perfect, with no grammar errors.
On the other:
Video of baby's first steps should be raw + unedited.
The more you move towards a "real moment", the less sense it makes to polish it to a mirror sheen
It certainly can, but not always. In any case, this effect is why when I see a product that has a high degree of polish, I take it as a weak signal that the product is not great.
TBH, seeing those press releases lately, they seem to do it intentionally.
Treating your users as idiots has become the norm.