definitely sounds like their best brawl yet, but the whole implementation seems dumb and lazy. Here's how I would have done Brawl.
Brawls last two weeks (5 days is a bit short for this idea)
One time fee of cash or gold (obviously encouraging people to spend cash while still trying to milk gold out of the system) for full entry into each brawl
At the end of each brawl, awards are handed out based on your overall performance, with people being ranked roughly similar to how the legend ranks work. Bottom 50% or so gets about a bit less than they would have gotten if they had just bought packs, similar to if you scrub out right away in an arena run.
Give quite a bit of bonus ranking based on someone's total games played somehow, so that someone who swoops in for a quick 10-0 isn't necessarily guaranteed a spot in the 1% award bracket, and someone who enthusiastically plays 100+ games with a fairly crummy win ratio isn't automatically condemned to the bottom bracket.
*edit*
Massan is brawling. His opponent, from 3 mana spells, got Felguard, Injured Blademaster, and King Mukla. He won anyway because Shaman sucks, but holy shit was it hilarious.