I agree that their business model is constantly generating funding for them, but I would not say it's working perfectly.
Many backers (I'm one of them) dislike the constant changes that they are making to the roadmap of the game. Things are promised then changed, and I do not think that their promise of open development is what many (not all ) thought it would be.
Personally, I would like more honesty from CIG - good news as well as bad, and then I would respect them more.
Yep, a lot of backers do not like this. But for CIG the system works as long as their needs are satisfied. And I would say that ~$10M they have earned last November/December, as well as $2.7M earned in January is a lot. As long as this funding levels are maintained - I doubt they are going to change anything.