And here's the answer boys and girls!
If you deselect all feeds, you will have a blank Blinkfeed screen. If you did that you would move another as home screen. I understand what you're saying about data plans, but I have not noticed a significant bump in my data usage as of yet.
I'm not going to pester the guy, the answer seems to be there - "if you did that (turned off all feeds) you would move another as home screen."
So, can definitely disable all feeds, and possibly swap out the blank Blinkfeed window (or park it to where you don't care as he mentioned earlier).
And if he's not seeing a big bump in his data plan, then maybe it has the sense to not update unless you're looking at that screen - they did say that the content only updates on demand, and isn't queued, in one of their vids.
Sounding more and more like a win on Blink.