I don't think anyone is saying that class E should be done with no surveillance. What a lot of people are saying is that, by design (and given historical precedent for ADS-B implementation), ADS-B should be sufficient for class E to be implemented, and for proper ATC control of IFR.]
The 2 northwest towers had procedural E back in 2011 so it is certainly being done. That was pre ADS-B as well. I think that is all gone now (beneath the D steps to 1200AGL LL).