I read this but actually not sure what the author is worried about.

I guess they feel proofreading AI-written code is harder than writing code?

That seems like a leap to me. I don't expect AI-assisted coding to be a panacea, and I'm sure there are ineffective ways to do it. But it seems like there are effective ways too.

So, sure, there is work to do to figure out how to use these tools in the best way. But that's not anything to worry about, IMO. It's opportunity.