Sounds like someone is bitter.
Maybe this is over the top but if you can get away with it as a development house or even a freelance, I say go for it. The big problem in this industry is not the people who charge too much but those who charge too little. It's getting tough for the little guys to make a living these days since many juniors are coming in at extremely low rates or dev sweat shops are pushing out new projects by the thousands, charging next to nothing thanks to places such as theme forrest.
I think the real crime is that the bill was agreed to, not that it the agency got away with it.