Restrictive Reddit's move: is blocking archive posts protecting users or censoring history?

A few days ago stumbled upon a statistic that Reddit is widely used as a source of information for AI answers.

Reddit answered: They wanna block access to the Internet Archive (kind of protection against scraping)

Is restricting archive access the right way to safeguard data, or does it risk losing valuable online history, which is also useful for journalists/media, etc?

(TBH, knowing what kind of discussions are on Reddit, I am surprised it is one of the dominant sources) :D