I don't know how anyone who carefully and closely reviews their output could possibly think that. Much of the time their code is fine, but every now and again they make a catastrophic (though often well-hidden) mistake that is so bad that all the tests pass but the codebase will be bricked if enough of those go in. They make such disastrous mistakes frequently enough that a decent-sized codebase can't last for more than 18-24 months.

If the average programmer is this bad, then there must be better-than-average programmers reviewing the code. The problem with agents is that they can produce code at a far higher volume than the average programmer.

Anyway, I don't know how well the average programmer programs, but if you commit agent-generated code without careful review, your codebase will be cooked in a year or two.