Metaphorically - 7:20 pm on Nov 7, 2007 (gmt 0) I don't think google overlooked that.
The problem that I will face is I set a variety of channels based on where the user came from, when, how, etc. Without me being able to change the channel combinations on my side I'd have to generate THOUSANDS of possibilities to manage all the possible combinations of channels that I might use. I use the channel data to manage when, where, and how I advertise my site.
I don't think google overlooked that.