Stating The Obvious.

The god of knowledge continued unaware that space is being created between him and the nearest god. "We were looking for a solution to bypass the need for Celestial Authority. That would have been a cool solution. Your solution is obvious and boring. Frankly, it is not a solution at all."

The grand gods knew it wasn't going to work and also why it wasn't going to work. Without a Celestial Authority, the GodSlayer is a grand god-level weapon at best. Adding a Celestial Authority will make it a Celestial weapon. The challenge is how to make a grand god-level weapon kill a Celestial. It would have been cool to find a way around the need for a Celestial Authority. It is why the Celestial Supreme's answer is disappointing and why the god of knowledge is ranting about it.

"And to think I was looking forward to the answer. It was a waste of..." The god of knowledge froze when he realized what he has just done.