Aussie millions, please explain something.

Hi.

I hope this goes into betfair live! thred, if not, please move it to normal poker.

Ive been following this promotion:

http://site.poker.betfair.com/promotions/50000_raked_hands_frenzy.html

Please explain the difference betwin the 35k aussie freeroll and aussie millions finale.
If you win the Bronze 50k promotion you get the ticket to 35k aussio freeroll, where the winner gets a 15k package to aussio millions, correct?
But if you are 4th in Bronze leaderboard, you get the 318$ ticket to 30k aussie finale + 100$.

Why is it better to be first in promotion?

Unless..the aussie freeroll will be easier and only the winners from 50k frenzy promotion will be in? total 15 players and everybody will win something? being 15th will get you win 600$? is this correct??