Exactly, which is a good thing if we want CA to have the resources they need to continue support for this game, work on expansion titles, and begin development on future TW entries.
I actually purchased from STEAM for this reason. In an era where console games continue to steal market share and reduce the quality of gaming for everyone, it's very important to support worthy PC titles. STEAM allows more direct support for game developers by reducing the overhead costs associated with boxing, shipping, and selling games at EB, Best Buy, etc. They enjoy higher profits through digital downloads, and can use those funds to continue making quality PC games.
This would only be true if they were looking to get by with the bare minimum. CA cares about the quality of their game, and is doing everything practical make it better. Give it some time...E:TW will get there.