“Apocalypse” and “Revelation” mean the same both being the title of the final book of the New Testament: as noted, a `revealing’ an `opening’ as of a book or prophecy.
“Apocalyptic” is often misused to connote “catastrophic”, “civilization-ending”, “end of the world as we know it” (well.... that is sort of what is predicted in the Book of Revelation).
Anyway, what makes the ancient Mayans so far-seeing? They practiced human sacrifice (after killing their victims the priests wore their flayed skins - yuk!), couldn’t even invent or use the wheel, had no knowledge of metallurgy and wielded knives made of chipped obsidian, and got walked over by a handful of Spaniards with primitive muskets.
So what’s to admire or learn from?
And one more thing. If you just walked in off the street and listened to a story about Christianity, what would stop you from saying “They believe in human sacrifice and cannibalism” ???