It's important to preserve the memory of this event in order to avoid right-wing myths like the one that the military coup was legal and the one that the Chicago Boys made the Chilean economy perform very well.
The right-wing revisionists like to mention the resolution against Allende approved by the Congress in August 1973. But there was no article in the Chilean constitution allowing the armed forces to do a coup d'stat.
Chile faced depressions in 1975 and 1982-83. GDP started to have high growth rates since 1984: when the Chicago Boys were not in the government anymore. Besides, Chile had income inequality lower than the Latin American average before the 1973 coup, and, after Pinochet's regime, had an income inequality similar to Brazil's.
There were mass riots in late 1985 throughout Chile as well, driven at least partly by the poor state of the economy.
https://www.nytimes.com/1985/11/06/world/around-the-world-34-hurt-150-arrested-in-mass-protest-in-chile.htmlIt was the Patricio Aylwin government elected in 1989 that sustained the economic growth that began late in the Pinochet dictatorship by reducing income inequality that deserves the credit for the Chilean economy.