Referring to his wife as a tool… I have to wonder if that marriage lasted
Things change but they stay the same.
His reaction, though, seems to say that working on a computer rather than on a typewriter would completely eliminate her role in the process. This is, of course, a failure of imagination on his part. If she'd learned to use a word processor she would have been able to do the job she'd always done, probably with more flexibility and efficiency than when she had to type essays multiple times through the revision process.