While this makes a great story, in reality, technology evolves much slower than it is conceived.

I understand we've made progress. However, direct neural integration is very difficult. I would understand bio-integration for very good limb prosthetics in 20 years, better than we have today. Perhaps even indistinguishable from the real thing to the wearer. However, integration directly into the brain without detrimental psychological effects is going to be very difficult.

20 years is a very short time.