I'm happy that Cyborg was added to the Justice League as a founder. I know it pisses people off, but there it is. The team needed more diversity, and he was a great choice--especially considering that he's always included in the Justice League on TV.
But why weren't there 8 founders?
I know that it's a lot of characters to work with, but you could write the book as a team book as well as 4 buddy cop films (Superman&Batman, Wonder Woman&Aquaman, Green Lantern&Flash, and Cyborg&Martian Manhunter). Just thinking out loud.
Plus you get a cool Young Justice/Teen Titans lineup.