Oh Please Contact Approach, Have you not heard of TCAS, (Traffic Collision Avoidance System). Their is no human pilot that can detect better than this system. The human pilot is alerted & told what to do by TCAS such as increase or decrease altitude to avoid a collision.
You really think what would happen if the aircraft is on its set GPS track & it is flown right into a storm. Why would you fly an aircraft right into a storm if you can divert & fly around the storm to make it safe for all ?
Aircraft Avionic systems are technical enough these days to work together with the set GPS system to fly the aircraft in a manner that will widely avoid at best cost things such as storms & turbulents & so on. If the aircraft was to fly into these conditions it would be automatically detected & the aircraft course would be automatically changed immediately to get out of that situartion ASAP & into better weather locations.
Its just like your automatic vaccum cleaner these days that can vaccum your house & if it hits the wall or encounters steps or so on it automatically detects & diverts or tracks side ways or backwards & goes another direction. All of this is happening while you are sucking on an icecream, sitting on your bum & watching the Jetsons cartoon on TV & giggling & laughing & saying it will NEVER HAPPEN. Sorry it has already happened.
I'm sure in future our weather radar systems & other systems will be effective enough to automatically divert aircraft flight path before they enter locations of vulcanic dust clouds, microbursts, hail, storms & many other detrimental conditions.
All systems will be trailed & tested & set in place on ground & in air & approved by FAA, EASA & any other global avaiation regulation authorities before all of this pilotless commercial aircraft goes ahead. Everything will be thought of & set in place just the same as an aircraft manafacturer does the same when designing a new aircraft, testing & applying for airworthiness approval.
Its all checks & balances.
Chock Chucker