Oh wow man, see its a very tricky area when you start talking should thing be allowed to be worked on in public. I'm all for it in most cases but i think in this case anyone pushing the issue is really wanting to see a clone and to see how many can pop up.
Yes for a freedom standpoint sure sounds like a good idea we could see some amazing things coming out but as i see it right now. There is no real need for it being open source. It should be focusing on other things the vast majority of the public really don't care if its open source. Everyone really mostly cares is it secure.
High Security can most certainly be achieved through open source.
"get enough eyeballs on it, no bug is invisible."
Yeah get enough eyes or hands on anything and its possible but still.
There is likely bigger concerns at the moment.
But i do understand what you're getting at.