I think what you are asking about is an NDA, not an EULA.
The beta -does- have an EULA which, on a glance, looks like pretty normal legal boilerplate. There is no NDA however. This question has been answered by Stardock employees a few times on these forums as far as I have seen - you can post your thoughts, screenshots and videos wherever and however.
edit: I can't make inline links on this forum. Oh well.
edit2: All fixed now