Is this project dead? Why are we stuck with modules level 3?

[sashareds]

W3C is widely used by programming colleges and course programs to validate students projects. However it's greatly behind the official CSS specifications. Which in turn hurts students and drastically hampers and punishes their exploration and experimentation skills.

In the real world W3C validator is not used anymore for many years for the very reason, it's way behind of the real world css specification implementation by the browsers.

What can be done? Maybe W3C could officially state they should not be used by colleges? Or they notify public by other means that their validation isn't up with the times and should not be considered 100% validation tool?