Worker proposals are a very interesting and also important thing. But there is somewhat of an chicken and egg problem. We would have needed such a thing in place at the mainnet launch to build, wallets, network monitors, and referendum dapps. But now this basic infrastructure is already in place, moreover the WPS requires these structures.
And then the - and here i d agree dan - risk of such a system being played is very high, just look at the bp voting. What this blockchain needs most urgently is a proper constitution, and indeed with a v2 constitution i wouldnt want to have a wps, because this would get drained to the last satoshi....