Is the thought process behind Manyogana similar to that of Showa-era delinquents!?

I've finally started reading the Nihon Shoki.
This series is very easy to read.

Kojiki is written in Manyogana and intended for a domestic audience, while Nihon Shoki is written in Classical Chinese and intended for an overseas audience, or so the story goes, but in this edition by Keiko Terada, she mentions that the Nihon Shoki contains many waka poems written in Manyogana, in other words, many waka poems that would be unintelligible to Chinese speakers are included without any explanation, and she states the following.

Wow. So they were trying to teach Japanese history to the newcomers using the Nihon Shoki. And you know,

Kokugakuin University's note says, "A reading group for the Nihon Shoki was held the year after it was completed, but there is no evidence that the Kojiki was widely read." From this, it is speculated that the Kojiki was "created for the entertainment of the Empress or for the education of the Princes" or "created to clarify the relationship between the Imperial family and various clans and to establish a state system centered on the Emperor." What!?
The Kojiki wasn't widely read even though they went to the trouble of making it?? It wasn't a subject of study?? Conversely, was the Nihon Shoki a subject of study for officials??

Also, the waka poems written in the Nihon Shoki are written in Manyogana, but when an uneducated person like me💦 looks at them, it reminds me of the phonetic kanji used by Showa-era delinquents💦

Waka poem by Susanoo-no-Mikoto
"Yakumo tatsu Izumo yaegaki tsumagomi ni yaegaki tsukuru sono yaegaki wo"
➡︎
"Ya-ku-mo-ta-tsu I-zu-mo-ya-e-ga-ki Tsu-ma-go-mi-ni Ya-e-ga-ki-tsu-ku-ru So-no-ya-e-ga-ki-wo"

Showa-era delinquent
Yoroshiku (Nice to meet you) : Yoroshiku (written with kanji meaning 'night', 'dew', 'death', 'suffering')
I love you : I love you (written with kanji meaning 'love', 'net', 'martial', 'brave')

The attempt to represent Japanese sounds using kanji is motivated by the same impulse as Manyogana. 1500 years agoWhen I think that what Japanese people do hasn't changed since then, it feels even more mysterious. If I say that, will Susanoo-no-Mikoto get angry? No, I don't think he will. He is the original delinquent and the original punk, after all. That's Susanoo-no-Mikoto's position. I mean, he interfered with rice planting and threw a horse carcass into a room where people were weaving! He's the original bad boy! So, even if he sees the phonetic kanji used by his delinquent descendants, he would surely say, "Even if they are delinquents, they can read and write, and education has permeated society, which is excellent!" And, scholars are actually doing a little analysis on it!! I feel it's better to read the site below in order from bottom to top. It feels like the information increases in that order.

Bonus