Tom did say the person leaving would be the one with lowest combined total, so in this case DialIdol got it right.
Now, Tom also said that the two standing up there (Nancy and Ron/Meta) were NOT necessarily the bottom 2 which means that Nancy did not get the 2nd lowest combined votes. We have figured it out that when the bottom 2 are correct, he does not make that statement.
In my opinion, this time DI was probably correct in that Ron was on the bottom with the actual lowest scores, and Elizabetta came in next.
I also think that probably Carson stole the hearts and show last night with the runaway votes.