In practice, that's probably how it will be, but don't forget that in case of a tie in the semifinals, ONLY extra games will be played... so it's too early to declare the winners.
In the second and third groups, the winner will most likely be determined in the third round, but in the first group, it's 50/50 whether tie-breakers will be needed... in short, it all depends on the organizer.
But, of course, the organizer makes the decision, and I won't argue))