Another executive won't matter because it's not the executives determining direction. It is the investors. It is the investors that want to destroy one of the last bastions of free speech on the internet. It is investors that don't want Reddit to be a platform for speaking truth to power because they are that power that truth would be spoken to.
When people write posts like this, they are missing the forest for the trees. It is the investors who are to blame. The investors benefit when spez gets blamed and not themselves.
I see no reason to think we would get a new CEO better than spez. I am not defending spez, I am not defending his edits of people's posts, but the fish rots from the top, and the investors are above the CEO. The investors are the party that deserves blame.