Every time I read one of these articles, I'm reminded of an excellent interview with the lady that runs (or ran) Duke's autonomous vehicles lab. She's a former F-18 pilot. She essentially said we tend to tackle the automation problem from the wrong end: We take care of the mundane stuff with automation, and still require operator intervention for emergencies and/or off-nominal behavior. Further, there's lots of studies that say human operators don't do a great job of monitoring systems for very long.
Her comments really resonated with me: Think of the skill, attention, and persistence you'd need to be on top of one of these things enough to be able to step in and "manage" it out of an emergency or off-nominal event. You'd be monitoring super-George all the damn time, and would have to be ahead of him in terms of all the ways he could f&%k things up for you. Far more workload than just flying the airplane.
A different, but very related topic was/is the idea that drones would revolutionize aerial operations (like ag/spraying, surveying, etc.) I've done a bit of work for a major aerospace company essentially "auditing" studies done to look at drones in these roles - and every single one of them was fraught with assumptions that favored drone operations (and deviated from the real world) and penalized manned operations After adjusting for these, the drone ops almost always "lost" the cost-effectiveness comparison with manned ops. I had a former student( a long-time CFI, a "student" only in the sense that I checked him out in an airplane he'd bought.) Like me, he taught on the side, and had a career in aerospace, with about a decade working for a successful military drone supplier. A startup was recruiting hard for their operation: using drones for forestry work, especially surveillance of forest health. We'd both come to the same conclusion: there was nothing this company was proposing that couldn't be done cheaper (probably a LOT cheaper) with manned operations. The cost of the pilot, especially a hungry young comm/inst/CFI/etc. is minimal compared to all the other pieces.
Between the Duke autonomous ops lady's comments, and the forestry drone startup, my gut tells me that real change is a ways off. That said, one of these startups may get lucky and hit a sweet spot - and then things could change more quickly.
--Tony