If they were, “are”, “of” and “and” likely wouldn’t be capitalized.
Also, “the actual grammar rules” are not a thing. There are lots of different style guides for how to capitalize titles, there’s no generally accepted “correct” version like there is for most of orthography or regular grammar (but almost all of them have in common to not capitalize the words I mentioned before)
Totally weird possibility: the author is following the actual grammar rules for capitalization of titles.
If they were, “are”, “of” and “and” likely wouldn’t be capitalized.
Also, “the actual grammar rules” are not a thing. There are lots of different style guides for how to capitalize titles, there’s no generally accepted “correct” version like there is for most of orthography or regular grammar (but almost all of them have in common to not capitalize the words I mentioned before)