This really needs to happen for all Andeans and Mesoamericans. Just because the first Europeans they encountered happened to be genocidal doesn't mean someone else would do the same. I'd say the main reason they are perceived as "primitive" is because they suffered from at least 2 plagues when the Europeans arrived and they were already weakened through bad relations in Mexico, poor land in the Maya area, and a massive civil war in the Andes. Just look at how Britain and France handled their encounters, not the most equal, but not even close to what Spain did.
It's really easy to see how things might not have been so bad but no, give them massive tech costs because they had plagues, don't let them build ships because they didn't use sails, and to top it off make exploration give free cbs on them because one nation was bloodthirsty.
The reforms add a lot of flavor though.