Again, I don't know. I'm willing to explore the idea of a person trying to become better. We had that with Kor and the rest of the Klingons. It's a thought experiment of how does humanity become better and move on from its most evil of past sins? Because all of us, as humans, are capable of great evil.
They need to find someone else who doesn't have the blood of millions on their hands to try and redeem. Besides, what can redeem such heinous crimes and who decides if they've been redeemed? I hate to say this, but Ash Tyler would be a far more interesting character to lead such a show. Especially since he has skin on both sides of the Federation-Klingon divide. Georgiou is essentially a carpet-bagger who meddles in the affairs of something she has no personal interest in.
What troubles me, is the lack of forethought involved with pretty much every aspect of Discovery, which will now seep into its first spin-off. They knew that Yeoh was having fun with the show, so why not rewrite the ending that sent Georgiou to the Discovery universe? A Game of Thrones-esque series set in the Mirror universe, to me, would be a far more interesting stretch of the Trek concept and Yeoh's talent than Space Stalin chasing spy plots.