HENPOH OK, invalid reasoning about how anticheats work aside, let me look into if adding that setting is actually feasible...
OK, so basically the issue that's currently blocking the addition of a "Face target" setting is that there's a path in the Nuker code that makes it break multiple blocks at the same time. And currently with how the "Face target" settings work, it's a bit unclear what should happen in that scenario across all the different facing options. It's not impossible, there are just a lot of little edge cases with it that haven't been worked out yet.
So yes, "Face target" in Nuker (and other Nuker-like hacks) will most likely be added one day once those edge cases have been solved. Probably not very soon because of all the snapshot chaos going on right now, but I would expect that setting to make it into a future Wurst update at some point.
And in case it wasn't clear, "Swing hand" already exists in Nuker.