I think if they released the source, but you weren't able to reflash the device (which is a design trade-off they chose to close some attack vendors), people would be up-in-arms and saying "it's not true open source because I can't re-flash or verify the device."
Except that I was just able to make the distinction... If their response wasn't patronizing enough, now you're adding on by saying we're too stupid to acknowledge the difference?