Dorephan wasn't any happier about the prospect of putting another Zora behind the controls of the Divine Beast, but he understood the situation from a hundred years ago better than Muzu did- Muzu had been too busy disliking the Hylians and their Sheikah shadows to fully absorb the gravity of the looming prophecy.
And though Muzu was a clever politician under that surly grumpiness, he did not understand the bond the Zora royal family held with the Hyrulean royal family. That bond went back so many thousands of years that nobody remembered when it was formed. It was known, but only the royals themselves fully understood it. The Zora royal family would answer the Hyrulean cry for help every time Ganon appeared, no matter the losses. If the Zoras took heavy losses, it was a guarantee that the Hyruleans were taking even heavier losses.
"I fully agree," he said. "All of the land stands threatened by Ganon, and has since time immemorial. The Zora royal family has ever stood as a friend and ally of the Hyrulean royal family in the struggle to survive the onslaught of that ancient evil, and we will continue to do so. Once Ruta has been reactivated and her controls put back in our hands, we will do our part to make sure that knowledge of how she works never fades from our memory."