I think the reason the original series was so popular was it was very accessible and, while it did have some subtext for stuff too controversial to say at the time, it also had enough on the surface (especially with the BIG idea of each episode, often relating to the twist) that you could be happy with without diving deeper.
Here there is a lot that is purposely not answered and purposely inserted red herrings. Some not answered questions: Was Joe real? Did Joe crash because he as a bad pilot? Why did the plane crash? Why did the podcast change from every passenger dying to only one... did the events actually change the outcome? Why did the universe give him the code?
Then the red herrings: the Russian mob plot went nowhere, the subtle attempts to put racism in as motivations for him to talk to certain passengers, & why would two people listening to a game cause the plane to go down?
The script writer obviously had a lot to say and questions to ask but didn't feel the need to explain the answer. When you do that you shut out a lot of the audience who come for clear plot twists and thought out explanations. In the original show the gremlin was never explained, but the fact that it was a gremlin was simple and straight forward.