Sorry mate.. but a spades a spade and 9'000 is a shit crowd for the second week in a row, Raiders 15'000 was above last years season average, they aren't immune to these variables you mentioned.
TOCC - IMHO you are correct with the low crowd number. This is not an abnormality rather the norm. I believe "seat" purchased membership is around the 6000 mark, then you can throw in another 1000 "complementary" from juniors and RucKus etc. Put's walk up tickets quiet low.
Consistent observation is very few of the much hated but high selling blue jersey that the appealed to the non-traditional / younger generation of Brumbies supporter sighted at the games.
What really stood out at the game (but didn't translate to TV) was the atmosphere at the game. The impeding SANZAAR decision would have been a small a factor (for both supporter groups), but if the Brumbies Hierarchy (Board) and key members (including the rusted on in denial) did not have a realisation on Friday night of the damage done and work needed to fix things then they are really out of touch.
So the best description I can come up with is imagine a noisy minutes silence that you have at games. Odd murmuring muffed voices but mainly still and almost silent.
That was the atmosphere first 20 minutes of the game. It was punctuated by some moments of crown involvement but it wasn't until the last 30mins of the game the crowd showed some life.
It was eerie, disconcerting, worrying and I have never experienced anything like it. Mrs Mst was taken aback how even the Ruckus crew seemed lifeless (didn't move for the first 20 mins - just sat in silence).
Bizarre, and very worrying. IMHO unless they make a big charge and get to the finals we wont see a crowd above 15K. The average will be about the 9K which is down on the pre-board antics average of 12K (season). Far cry from the 20K+ Tah crowd a few weeks before the board room war.
In general the "game day experience" is very poor (out of touch) and nothing to generate any atmosphere.