Scholars argued the Book of Enoch was illegitimate and it was unavailable for the common people to read until after the discovery of the Dead Sea scrolls.

Directly from the shitty Wikipedia-

 Various Aramaic fragments found in the Dead Sea Scrolls, as well as Koine Greek and Latin fragments, are proof that the Book of Enoch was known by Jews and early Near Eastern Christians.

https://en.wikipedia.org/wiki/Book_of_Enoch

And from the same Wiki article linked above, the scholars used to claim the following before the discovery of the Dead Sea Scrolls proved them wrong.

 It was no longer possible to claim that the core of the Book of Enoch was composed in the wake of the Maccabean Revolt as a reaction to Hellenization.

In other words, scholars claimed the Book of Enoch was written sometime between 167–141 BC, which would have meant it was a forgery.

Where I wrote "revealed exactly at the time it was needed" in my original post, I could have written something to the effect of "revealed to be legitimate and not a forgery at exactly the time it was needed," but with less clumsy language, of course.

Scholars argued the Book of Enoch was illegitimate and it was unavailable for the common people to read until after the discovery of the Dead Sea scrolls.

Directly from the shitty Wikipedia-

 Various Aramaic fragments found in the Dead Sea Scrolls, as well as Koine Greek and Latin fragments, are proof that the Book of Enoch was known by Jews and early Near Eastern Christians.

https://en.wikipedia.org/wiki/Book_of_Enoch

And from the same Wiki article linked above, the scholars used to claim the following before the discovery of the Dead Sea Scrolls proved them wrong.

 It was no longer possible to claim that the core of the Book of Enoch was composed in the wake of the Maccabean Revolt as a reaction to Hellenization.

In other words, scholars claimed the Book of Enoch was written sometime between 167–141 BC, which means it was a forgery.