And with that we come to the end of the first season. A little is revealed, but more questions are raised.
This was a really interesting episode for a season finale. It felt really low-key and unlike any other episode we've had so far. And it mainly focused on Roger. That is weird in and of itself because our protagonist has actually been the focus of any episode so far. Yeah he's been involved and moves the plot of each episode forward, but those plots haven't actually been about him. That wouldn't be strange for an episodic private detective show like this, but this show has made it a point of bringing up Roger's lack of introspection. So Roger has remained a bit aloof and mysterious to us the audience.
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This is pretty clever and goes a long way to explaining Roger's character. His past is very traumatic and ontologically questionable, so it makes sense that he wouldn't really focus on it. And his attitude to Angel in Episode 7 makes more sense now too. Being part of an experiment, probably against his will, to preserve Memories and recreate a destroyed society would most likely sour Roger on people working to restore the past. Having seen the lengths these people will go to, he can't support it. Better to leave it behind and move forward, at least for him.