If there are massive protests, it's clear the reconciliation hasn't reconciled things properly, and a better reconciliation must be done, preferably one that doesn't result in more massive protests from either the same or other huge groups.
In fact, remarkable long-term lack of massive protests would be a very good metric for determining whether ongoing reconciliatory efforts are moving in the right direction. If such protests start happening, correct course sooner rather than later, and measure success by a newfound lack of further massive protests.