Where exactly did I say I don't recommend anyone visit Chichen Itza because I went back and re read my post and no where did I say don't go there.
The OP asked where to go that wasn't "too touristy & overly sanitized" which Chichen Itza is with it's manicured lawns, roped off structures and vendors all over the place.
I simply recommenced an alternative ruins site that might better fit the OP's wants.
I didn't interpret your recommendation of Ek Balam as suggesting it as an "alternative" but rather as suggesting to choose Ek Balam instead of Chichen Itza. There is a distinction in my mind between suggesting two alternative sites and steering someone to a different site. It's like going to Egypt and beeing steered from Giza to Saqqara instead. Yes, a fascinating and unique site there that has been getting more attention from visitors, but you skipped the Great Pyramid because it's "too touristy."
Moreover, I'm not sure we all (myself included) fully appreciate what our dear OP had in mind when she said she wished to avoid "too touristy and overly sanitized" sites. Compared with what? Yes, the central area at Chichen Itza is grass (though hardly "manicured"). Yes, there are vendors, but as I mentioned in a comparison with Egypt, where I believe the OP has been, the vendors do not harass visitors AT ALL. In general, I have found Mexican vendors, even at touristy places, to be super polite. And yes, visitors are now prohibited from climbing all over the ancient stone structures that they used to be free to trample. Is that not an improvement? They should all prohibit climbing, in my opinion, and more and more are. And making the sites more accessible, by providing paths and such to walk on, is a good thing. I have been to sites in Mexico, Belize, Guatemala and Honduras that you had to climb over and had no idea what was beneath you, as much of it looked like a jumbled pile of stones with a few partially excavated structures interspersed. But I digress. Ek Balam may be wilder, and it may provide an interesting contrast to Chichen Itza, but to write off Chichen Itza, the big kahuna of the Yucatan, as "too touristy and overly sanitized" seems extreme.
Coba, which others here have mentioned, is great too! They're all fascinating!