It's a funny thing to write, like an article in an old newspaper that aged quickly. I suspect that this will be wildly out of date within 2-3 years.
It was true. The negative signals (we called them "code smells") weren't the be-all-end-all of reviews, they indicated to the reviewer where to spend more effort. It got us 90% of the benefit of an in-depth review with 10% of the effort. But with LLMs eliminating this, we now have to spend all our effort on everything, taking a lot more time and energy overall.