[DoctorOetker]

(I am not informed about what the typical arrangement is to spread out the stochastic reward a pool earns over its members, so I am making no claims on this front)

But if the (non-principled) value of mining 20 blocks is 20 block rewards, then there we have the cost of buying 20 blocks (assuming miners non-ideologically sell out).

Assume they would not voluntarily sell out, then any flaw in the pooling mechanism (by which miners dilute the rewards into a steady income) which allows 1) other work to be assigned to the miner 2) while still receiving their intended addresses, would allow an attacker who is able to hijack the work assignments, to buy those 20 blocks for the price roughly on the order of ~ 20 block rewards, by 1) hijacking the work assignments 2) payout out the miners the correct expected amounts so that they hopefully don't notice

Is that correct?