There is no right or wrong in relationship – only things that build relationship up and things that tear it down. Theology is like this aspect of relationship – you can argue till you’re blue in the face over whether one detail is right or the other, but at the end of the day you’re simply pointing toward God or you’re not. What it means to point toward God may change over time just as what it means to compromise and support one another in relationship changes over time. That doesn’t mean God ‘changes’ per se, just that what was right about theology in the first place wasn’t the words used as much as it was the relationship empowered.