I don't get what Dietz is saying or trying to say.

Is he saying that the EV, which is figured before the wager somehow changes after the results are known? I can't imagine even he would think that, but I just can't come up with any other explanation for what he is mumbling at this point. Can anyone help me?

All I can say is the very obvious. EV is not an opinion. EV is the math of the wager or play.