My own guess is that the last discussion we had on Namespaces was so long, impassioned, exhausting, and ultimately inconclusive that no one wants to get drawn into another one, particularly since there's nothing new to talk about.
The issue wasn't even remotely addressed by the namespace proposal. To sum up that part of the discussion it seems that two lines of code could "fix" the issue:
Object classPool: Smalltalk. Smalltalk := nil.
Duh. No namespaces, no globals, no nothing. Now what? Have we significantly improved the situation? I don't think so. "Removing globals" without addressing what class variables and pools mean is a pretty useless exercise. And the namespace discussion is orthogonal to it.
Cheers, - Andreas