Makes sense. And believe or not - I have been reading comics since the 1960's and never realized until that part in the film that Clark's and Bruce's moms both are called Martha.
I always knew their names were Martha, of course, but I never thought it was significant.
I wonder if it is significant that the first names of the Justice League members Aquaman, Batman, Superman, and Wonder Woman are Arthur, Bruce, Clark, and Diana.
Now that I think about it, Guy Gardner, Hal Jordan, John Stewart, Kyle Raynor. Someone named Iris Taylor needs to become the Green Lantern.