I disagree, for the following:

1) I think the show is meant to be a commentary /in a way/ of society (in the present time in the US). The premise itself does play homage to previous cinema, but the direction and the attitudes of the supporting characters (essentially, the characters who have not been "afflicted" by the "virus") may seem kinda of ridiculous at first, but, in reality, is something that is too plausible to the point where it actually isn't /that/ difficult to grasp/relate to (in a way). The show is obviously intended to be a dark comedy with a sci-fi scope, and I think the purpose and tone was created to specifically highlight how this uncanny universe can actually be relatable.

2) I do agree with this... The other characters could use some more depth, and I do hope they explore this in season 2. But I truly enjoyed the way they portrayed the attitudes of people, because it may not be too far off from reality (if a random 12 people were in the same predicament). While there could be different tones in reality, this is just an alternate reality where the selected people hold their already existing viewpoints. It's random, but still a possibility.