The point was that Brawn HAD to make a decision to shift major focus to the 2010 car. dannyjo22 said that Brawn didn't have the resources to compete with the bigger teams hence forcing them to choose between current car and 2010 car. Other teams could split development easier as they had more resources.
That is exactly it. They had to make a choice from turkey onwards to focus on the 2010 car. A big team doesn't have those worries. It almost cost a drivers title to Red Bull. Infact it would have cost them had the red bull been as reliable as the Brawn.
A big team would not give up developement of a car in a title challenge to focus on next years, you said yourself Frank they gave up on it for 4 months.
Then you have the fact that the one big update package they developed upset the car and they had to go back to day one.
After having won a title and looking for the best package for the future that would concern me as a driver. Also that asking for an extra 3 million seems to be an issue of huge proportions would worry me that the team didn't have the funds in place to mount a serious challenge for next year.
Also that the factory isn't exactly happy their bonus payments were stopped would concern me.