Skepticism on this was called out in WaPo's article on the same subject:

Other experts on the AMOC also cautioned that because the new study doesn’t present new observations of the entire ocean system — instead, it is extrapolating about the future based on past data from a limited region of the Atlantic — its conclusions should be taken with a grain of salt.

Source: https://www.washingtonpost.com/climate-environment/2023/07/2...