Mayans still live there, and they know every nook and cranny and tree and rock in those forests. If you ask them, and then shut up and listen, they'll tell you all about it and answer any questions you might have.
I did ask one about what was hidden in the forests below us that I met on the top of a pyramid in Belize. He pointed out the locations of about a dozen pyramids in Guatemala that we could see in the distance and told me about the roads and platforms and other structures hidden in the forests around us. I was astounded with what I learned from that man. He was a Forest Ranger who grew up there. His family had been living in the area forever.
I also asked him what they thought about scientists from foreign countries who come there and then announce to the world they've "discovered" something. Suffice it to say this piece would probably irk him because it pretends none of them knew anything about most of what scientists claim to have "discovered". He also opined a bit on how their culture has been depicted as being violent and bloodthirsty and offered a much more tempered version.
But, it is nice to know that Guatemala funded the project and have the data. That part is cool as can be and I look forward to hearing more about what they learn from it.