It also comes down to personal experience. Stuff never breaks equally. And with how many players actually play wow, even the smallest bugs become known just due to sheer volume and interaction.
Tbh I think more people would be open to live testing if we had a week dedicated just to the testing and it didn’t hurt our gameplay.
Like I know I was memeing earlier, but 7mil+ people live testing? You can’t get better interaction and feedback than that.
Just do rollbacks or set it up so the environment is controlled in a way it doesn’t hurt us tremendously.