Sadly I know the rules of wheel of fortune (My mom loved watching this show nightly as I was growing up).. All that 1 million dollar space does is add a million dollar card to the bonus wheel (normally the highest amount on the bonus round wheel is 100k).. And the only way you go to the bonus round is to have the highest amount of cash won at the end of the show (that 1 million dollar doesnt go towards his total, it just to add a million dollar card somewhere on the wheel)
So even if he had gotten it right, he STILL had to have the highest cash + prize total to even go to the bonus round. Then he has to spin the bonus round wheel which has like 15 different cards, and get lucky and hit that million dollar card.. THEN he has the guess the bonus puzzle correctly.
So don't think just because he mispronounced Achilles (which is unfuckingbelievable, but shit happens when you're nervous on national TV) he instantly missed out on the million dollars. Far from it.