That is not my understanding. $1.34B is apparently the total winnings of all people that round, not the winner. The winner is entitled to one of two options, either a $708.5M single payout or an undisclosed higher total as an annual payment over 30 years. There may be a very large long-tail of small winners.

(Edit: Can't reply: the understanding comes from a lifetime of experience with weasels. They use the figure to describe the round, the winner is not entitled to the round total. This is an intentional marketing doublespeak on their part.)