My wild, unfounded conjecture: the attacker discovered this recently and had only a short, fixed time window in which to run a scam. Maybe the time before some

My wild, unfounded conjecture: the attacker discovered this recently and had only a short, fixed time window in which to run a scam. Maybe the time before some maintenance update? So none of the more sophisticated approaches (like selling to the highest bidder or manipulating some stocks) were practical before the vulnerability would be repaired. If you imagine short notice and a couple-hour window when US markets were closed, are alternative hacks really that much more lucrative?