I think how much they enjoyed it would depend on the person being executed.
I would not want to watch Anne Boleyn or Lady Jane Grey or Marie Antionette lose their heads. However, if I get the chance to watch a murderer get executed by firing squad, I'm taking it. I think I would enjoy seeing blood shoot out of Luigi Mangione's body.
I'd also be okay with seeing someone die in the electric chair. Lethal injection and execution by nitrogen gas would be okay too.
Finally, I don't consider an execution to be "botched" if the person meant to be executed dies.