You could aruge that HUMAN Osgood was given her own name, given individual opinions and numerous lines of dialogue, and had a leading role and plot function within her story as well.
Bonnie is now an Osgood. In future appearances, it will be just as unclear who is who. You can't speculate that the reveal that Bonnie becomes an Osgood wasn't there because it was. And as human Osgood has just as much of a unique back story as Bonnie, both totally separate from the Zygon Osgood, then there's absolutely no reason to consider Bonnie an exception. So either we keep all three separate and have a hub page or we merge all three.