Americans, who are hostile to AI, are depicted as being almost uniformly white. Humans who are friendly to AI are from New Asia and are uniformly Asian. Joshua is a black man, making him racially unaligned, and he spends the majority of the film being ambivalent to AI.
Alpha Omega references the phrase "I am the Alpha and the Omega", indicating Alphie's status as the liberator of robotkind. However, the fact that she is renamed "Alphie" places an emphasis on "Alpha". Alphie is not the herald of an ending, just of robotkind's beginning as a free race.
Maya was put into a irreversible coma by the NOMAD bomb, so when she wakes up in her android body, she's instantly gone from being blown up to finding herself on a disintegrating space station, putting her through the experience of dying twice in a few minutes' time.
