How is that not zero confidence?
They built something, sure, but the technical cofounder believes it has very little/no utility. That's telling.
They built something, sure, but the technical cofounder believes it has very little/no utility. That's telling.
Per his OP, the technical founder has not explicitly stated whether he believes that the product has zero utility. Rather he's saying that he found out (from data I suppose) that there is no product market fit for it.
Splitting hairs IMHO.