The bacteria ask Dr. Chandra, "What is God?" While we never hear Chandra's direct response, he likely could have answered that, according to Christian theology, God is an all-powerful being that created humanity in His own image. Hence the bacteria's response of A God Am I.
Meta example: Isn't the point of an April Fools' Day joke to present something unexpected to trick us? What could be more unexpected than a full Analog Horror anthology, rather than the expected silly and/or funny video?
Steven Millbanks' disappearance. He went missing before the snow bacteria broke out, as his sister Darcy explains to Carl Denby, she went looking for him at Scott's Manor and the people working there claimed he just never came back after finishing a shift. So what happened to him?
His girlfriend has also gone missing around the same time, raising even more questions about what their fate was, exactly.
The "What is God?" sequence gets worse the more you think about it. If they're asking, the bacteria have heard God mentioned and probably deduced some basics from context, such as God being powerful and judging evil. So the bacteria have probably already decided WE pose no threat to them — now they're just checking if this God of ours does.
What were the people at Scott's Manor planning to do with the snow bacteria? In Dr. Chandra's final log, Dr. Simmons says that their opinion of themselves is going to change when the snow melts... were the scientists planning to melt the snow to see what it'd do to the bacteria?
If the movie is presented as a chronological reconstruction of the events that occured in Fawn Circle, why are Dr. Chandra's logs not played first? note It'd ruin the narrative flow, obviously.
