Exactly my thoughts. While not fluent for professional settings, I live in Japan and speak enough for everyday life and I can tell that the Japanese I studied at school from first principles and more "literature-like" has nothing to do with the one used day to day, and e.g. that one has nothing to do with the one used in manga.
You can do the same exercise as the author with almost all languages, the only small advantage of Japanese and more programming-like is the combination of kanjis to make up new words but even then the pronunciation might totally change. For example in Spanish:
"I eat beef" = "Yo como ternera" = subject + verb + object. Both in Japanese and Spanish, but not in English, you can omit the subject "yo"/"watashi". But this is so syntetic that people wouldn't use normally, I might instead want to say how good cow meat is and say "¡me encanta la ternera!" "Gyuniku ga suge ski!" (transliterated), in Japanese effectively eating up some random letters there.
You can do the same exercise as the author with almost all languages, the only small advantage of Japanese and more programming-like is the combination of kanjis to make up new words but even then the pronunciation might totally change. For example in Spanish:
"I eat beef" = "Yo como ternera" = subject + verb + object. Both in Japanese and Spanish, but not in English, you can omit the subject "yo"/"watashi". But this is so syntetic that people wouldn't use normally, I might instead want to say how good cow meat is and say "¡me encanta la ternera!" "Gyuniku ga suge ski!" (transliterated), in Japanese effectively eating up some random letters there.