The benefit to the worker I not having to waste their time with doing something that could be done better, the issue is how the company responds, not the actual "work" itself going away.
The idiotic arguments I see every time jobs are automated away is just "less jobs bad", yes in our capitalistic system where companies are insentivized the way they are I understand not having a job is worse then having one where you do stupid busy work, however that in itself is a stupid reason to bemoan any efficiency or time saving gains by actually useful technology uses.
I am a hard worker and I like to find ways to be more efficient and optimize my time spent on tasks, things like this are exactly that in theory.