Loved your whole post, tennisgurl. The last episode threw me, and I've been debating whether to watch the whole thing again or let it go. It was obviously a very personal project for him, and it's interesting to see that a friend (whoever it was - I like that he kept the characters as stand-ins for whoever engaged him in real life) led him to the real game. I had thought the real version ended with the documentary, but maybe there are different iterations continuing in different places.
It's pretty brave to put himself out there like that. He could have ended the story in somewhat traditional fashion, but instead he revealed how he had been as lost emotionally as Peter and Lee/Clara - possibly with connections to the other characters as well - and then found a way to feel excited again about creating, and doing so in a way he hadn't tried before - taking a real risk with this show. By revealing so much personally, there's potential to reach even more people than simply watching might do.
The scheduling of the show is interesting as well, given that so many people have enforced downtime (not everyone, obviously), time in which they might consider new directions for things that aren't working, rather than going back to "normal" when things open up. The show started airing before lock-down, too.
Anyway - I'll be watching the series again. I paid attention to the personal aspects before, but this time I won't worry about the puzzle at all.