I really don’t think that is the case. Here, I think, is an article about the work: https://phys.org/news/2021-12-octopus-crabs-lobsters-pain.am...

And that has a link to a paper: https://www.lse.ac.uk/News/News-Assets/PDFs/2021/Sentience-i...

Edit: but, you may be right; I cannot find any other source for this NZ news.