For the likes of journal articles as mentioned in the article they should indeed use full links, but also download the entire website to include in the suppleme

For the likes of journal articles as mentioned in the article they should indeed use full links, but also download the entire website to include in the supplementary information. Data changes. There's no guarantee even an archive site will retain the original source over a long enough period of time. But the supplementary data will generally survive as long as the web version of the journal article.