Oh, yes, we certainly disagree!

And you did not address the fact that issues mentioned are not confined to Rio. Privilege allows some of us to ignore realities, both at home and abroad.
----
When I went to read the article you linked, there was another video article running in the upper left called "How the Rio Olympics Destroyed a Neighborhood". That is the real story of these games. Little wonder displaced and marginalized residents have reason not be delighted at the rich foreigners who have taken over their city and whose luxury and comfort comes before residents' own safety and health.
-----

The key phrase in the article, though:
"Part of the challenge is Rio’s layout. It is a city aligned among hills and the beach, meaning the sprawl of most major cities is hemmed in by geography. So tourist areas aren’t that far from favelas, and transportation arteries often wind near both."
There is no other city I know of in the world where the rich and poor live literally rubbing shoulders, the poor looking hour by hour into the fancy living rooms of the rich, and many of the rich looking down their noses at the poor neighbors it is to their advantage to keep disenfranchised.

I certainly hope you put much thought into locating someplace more in your comfort zone for your next vacation.
Meanwhile, the fewer unappreciative tourists cluttering up the landscape, the better local experience for those of us who love it there, warts and all, happily dancing samba, caipirinha in hand, till the wee hours, living well on our 15K.