Hi Jess,
I contacted some of my colleagues with more experience in those countries to get their take. In Ecuador, neighboring Colombia does have some FARC guerilla holdouts who make occasional forays into Ecuador but stick close to the border. No fall out in the cities and towns of Ecuador from that.
As far as guerilla or “rebel” activity elsewhere, we haven’t heard of any and certainly not any that is affecting expats living in those areas.
Of course, no country is immune to the activities of drug runners who transport their goods through the region to the United States. But if you don’t associate with those activities, again expats in those areas don’t have problems.