I question the epistemology of people who did not realize this by around late-2024. (Sonnet 3.5 was out and could do some things okay.)
It's defensible to say "October 2026 is not yet the time when we should be 100% deferring code writing to AI (let alone not even looking at the code any longer)". But the writing is very obviously on the wall. It's likely not going to take longer than 10 years.