To 100% it, yes. It has to be done ever several new game cycles so you'll also have to go through the other shit multiple times too. I don't think anyone is expected to do that though. The new game plus stuff undermines the outpost system though. It'll be gone your next cycle, so just don't bother I guess? The ideal meta progression would be to rush through the main story and complete all the temples on your cycle then move on.