The article is a blog post summarizing the actual research. The researchers' summary says:
We do not provide evidence that: AI systems do not currently speed up many or most software developers. We do not claim that our developers or repositories represent a majority or plurality of software development work.
The research shows that under their tested scenario and assumptions, devs were less productive.
The takeaway from this study is to measure and benchmark what's important to your team. However many development teams have been doing that, albeit not in a formal study format, and finding AI improves productivity. It is not (only) "vibe productivity".
And certainly I agree with the person you replied to: anecdotally, AI makes my devs more productive by cutting out the most grindy parts, like writing mocks for tests or getting that last missing coverage corner. So we have some measuring and validation to do.
In the process of being replaced.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Temporal