Because it's not what most people expect.

There was pushback against a lot of the evils of colonialism - most of them unsuccessful, like this one. Maybe we can learn lessons for fighting against the institutional evils of our time.

Because it might not have been the “Spanish”, but certain people who ruined history. So it’s not fair to blame a whole country for the actions of a few.

I would say because it highlights that even back then there was the same kind of tension as today between those who believe they are doing right, those who also believe they are doing right, and right never ending up being done in the end. It’s like ideological, metaphysical, and psychological border disputes and skirmishes, i.e., human nature.

Also, failing upwards of those who serve the dominant system is clearly not just a modern phenomenon.

Because a previous commenter wrongly said, "the Spanish made a point of seeking out all the Maya books". It wasn't "The Spanish" it were some individual actors clearly acting against "The Spanish" crown wishes.