This is performative bullshit pandering to the increased skepticism around AI. He wouldn't be saying that if AI investment was still in full swing.
I do agree with him about AI being a boon to juniors and pragmatic usage of AI is an improvement in productivity, but that's not news, it's been obvious since the very beginnings of LLMs.
So it's performative when the head of AWS says it and not news. But it's not performative when you say it and people should have listened to you in the comments?