“Mr. and Mrs. Smith” is an untraditional marriage of convenience story — one that’s wrapped in spy missions, snarky humor and a lot of death. But ultimately, it’s still a love story. The tumulous relationship between operatives John (Donald Glover) and Jane (Maya Erskine) is the glue that binds “Mr. and Mrs. Smith” together. In the eight-episode Prime Video series, a nameless agency matches two directionless spies to create a married assassin team that are sent on missions. In this version of “Mr. and Mrs. Smith,” neither Glover and Erksine pretend to emulate Brad Pitt and Angelina Jolie’s iconic portrayals of Jane and John Smith in the original 2005 film. Instead, in Francesca Sloane and Glover’s spy thriller, the two leads are people of color — one a dark-skinned Black man and the other a half-Japanese woman – creating a different dynamic. Glover himself has been long criticized for his fetishization of Asian women. From the outset, the show doesn’t appear to focus on the characters’ race unless it’s a throwaway joke as Jane and John …