Then why is Luke getting tortured by the Emperor’s lightning hands a big deal?
Because he is torturing him to death? I mean, he did survive it you know. But the Emperor was deliberately killing him in the slowest and most painful way possible. So I don’t think the fact that Mace got a comparatively much shorter blast of lightning proves he’s dead.
To me they are equivalent.
So… In that case you agree then that Mace is alive? Because otherwise Luke would be dead. I don’t think you exactly thought this logic through.
The only thing that stopped look from dying was Vader’s sacrifice. There was no sacrifice in the case of Windu, so he’s dead.