This story would have been better in the traditional way moving forward only, and showing brief flashbacks for deeper stories that only book fans would know about.
You should only have back and forth time jumps in a TV adaption when the source material's fanbase is massive. Like DC Comics, Marvel, Harry Potter, even The Bible!
But doing it with a book many have never heard about written by an author that again, many have never heard about? Bad choice...
Alas, now that I understand that there will be time jumps in either direction, I can somewhat enjoy this series as a sci-fi enthusiast. Though I know it will just not live up to episode one's high bar, which I must say again was near perfect.
PS: Not a fan of the books. Never even heard of neither the author nor the book series. But, I will certainly give the books a read because episode one was that good.