I kinda agree with you, but I think it's expected: demos are just ads for technical people. So in a way you know that it's too good to be true.
Plus they don't actually explain how it works, how the demo was made and what's the limits of their technology. They only show the good side, so people naturally wants to know the not-so-good side as well.
Plus they don't actually explain how it works, how the demo was made and what's the limits of their technology. They only show the good side, so people naturally wants to know the not-so-good side as well.