No, the problem is that AI systems are unpredictable, unverifiable, and their correctness is unprovable. There is a million academic articles detailing this issue.
When we need something that works 99.99999% of the time, it is written in ADA or similar safe language and tested exhaustively. You know how long processing will take to the microsecond, you use a special realtime OS, etc.
AI will have its own failings, some of them totally unpredictable, so yes, boiling it down to 'just needs to be trained properly' is terrifying when peoples lives are at stake
Look at this attack, and tell me how is this goonf to be avoided with 'proper training'
https://www.theregister.com/2018/01/11/ai_adversarial_attack...