This is a really interesting point. It seems to suggest that the self-organising property of markets isn't just from supply & demand, but also requires some other conditions (that demand is widely distributed politically? or in space & time?) and that any market with a sufficiently wealthy actor loses its predictive power, because they can destroy those conditions whenever it benefits them.

Doesn't even seem to be related to the fact that they had exclusive purchase rights. Lacking that, you could buy far in the future after everyone else has put in their orders.