Shitty argument, seeing as that is true for every single other finals system known to man as well. So then we have to look at what happens when you lose, and whether we are giving enough advantage to the final finishing positions.
Personally, I think 8 teams in the finals is too much given that those finishing 7th/8th are often scraping a 50/50 record. But I could live with that in the AFL system, where there is a clear advantage given to the TOp 4, thus rewarding season-long consistency. It also provides matches between teams of (presumably) similar ability in that first week, and every single game has a clear outcome at the time it finishes. I never understood the argument that the McIntyre system is good because it keeps the best teams apart till the final. Screw that - I want the good sides playing each other as often as possible, finals or not.
I mean:
Storm vs Tigers
Broncos vs Sea Eagles
Dragons vs Knights
Warriors vs Nth Queensland
is a much better slate of games to kick of the finals.