I'm saying that even if "AI values are well-modeled as being randomly sampled from a large space of possible goals" is true, the AI may well not be very certain that it is true, and therefore assign something like a 5% chance to humans using similar training methods to construct an AI that shares its values. (It has an additional tiny probability that "AI values are well-modeled as being randomly sampled from a large space of possible goals" is true and an AI with similar values get recreated anyway through random chance, but that's not what I'm focusing on.)