we do know quite a bit about ancient Mesoamerica.
If you pick and choose who to quote. I have also shown how the AAAS (Academy for the Advancement of Sciences) has shown that all we thought we knew of Mesoamerica is wrong. So what do we do with that? Ignore it? Mesoamerica is still a fledgling study in every way. I have Michael D. Coe in his magnificent book Breaking the Maya Code , where he notes clearly the modern scholarly biases that cause serious problems with our understanding about the Maya right now today. What we know today certainly will be overturned by next few decades of research, or at least changed significantly that we will not be able to say we know a whole heckuva lot. This is the obvious theme of William Sullivan's The Secret of the Incas , which shows us just how very little we know about them either! For what it's worth, in Biblical studies, the exact same situation is occurring, not to mention science - gasp! Yes that subject also! There is no finality yet. Conclusions are always going to be tentative. Why on earth do you think Coe keeps updating and upgrading his classic book on the Maya, now in its 6th edition? Linda Schele blew the doors off our supposed knowledge about the Maya with her book Maya Cosmos. It turned our knowledge of the Maya on its head. I could go on, if I am forced into it.