I agree.
Other good candidates could be:
1) Bronze medal in the marathon in Athens 2004. Especially with that occurrence of that Irishman.
2) Volleyball is Brazil's main sport in the Olympics, so it's a little obvious that the main moments are from this sport. Another not mentioned is the famous Los Angeles 1984 silver medal.
3) Gold in men's football in 2016, which was remembered because at the time Brazil had never won a gold in the sport and the defeat in the World Cup by Germany was still recent.
4) The opening of the 2016 Olympic Games, for obvious reasons.
I don't remember any others, honestly.