So, do you think they made the right decision on Terra Nova?
For me, I say thee nay.
The Prime Directive (which doesn't exist) shouldn't be observed for people who are breakaways from existing humanity. Bluntly, I think they should have done everything they could to help these people than condemn them to 10,000 years of not knowing washing their hands is a good thing.
I may be letting my feelings on BSG's finale influence my opinion, however.