Please no one scold me for putting this in a blog and not an archive because I can't get into the archive, it's full.
Anyway Heather is rumored to be voted off in the Amazon, but there is evidence against that
- 1 Heather is seen in multiple places likely after the Amazon
- 2 Heather will try to have an alliance with Sierra.
So that's why Heather does not leave in the Amazon episode.