After thinking on this for a bit, I also think that these two characters should receive errata to say "as if they were the attacking player". Given their status as clan champions, i don't think that this ability is too powerful when used on defense especially when considering that they still will not have bowed yet in regards to the water ring.
I definitely do not support changing the rings themselves to be used as the defender. The ring effects incentivize you to be aggressive and if you could just defend and claim those effects while trying to honor or dishonor victory, the time length of the average game could very well double.
Edited by twylite