Yeah, for Pro mechanics who are paid to build the absolute best, yes perhaps it's useful. But for the rest of us, nah.
Here is a fantastic, compact and very much to the point guide on how to spoke wheels (in dutch, google translate is your friend):
I wonder if the common thread is that these activities require a high level of skill but don't pay very well and are tiny markets, so there's no way to do the R&D needed to automate production.
One recent weird thing on a brand new bike was a set of spokes that had the inside and the outside exchanged leading to all of the spokes rubbing gaps in each other. I still wonder what the story was about that one, it makes absolutely no sense at all that an error like that would be made in a mass produced bike and no sane bike mechanic would spoke a wheel like that.
By day I'm an industrial physicist, and I've designed systems for doing automated mechanical adjustment. There's an 80/20 rule, where tightening the specs can dramatically increase the cycle time. So, you can make more widgets per hour if you relax the specs.
Since this part of the thread is kind of about that question, I would like to ask: how come? Isn't machines' consistency something that could be very useful here? And if not, couldn't tools like the one presented by the original post help the machines reach a high standard?