Les Bleus were denied by the spirited South Americans despite the dismissal of Antonio Valencia on 50 minutes for a high challenge on Lucas Digne, with goalkeeper Alexander Dominguez winning the Man of the Match award.
Sections of the Maracana crowd greeted the referee's whistles to end both halves with audible booing, but after the match Deschamps felt no need to apologise for his team's performance.
"It takes more than [this result] to spoil my satisfaction," he insisted. "We qualified first in our group. We had a different team, different players but the idea was the same.
"They had a team with 10 players in front of us who defended very well.
"We had an enormous amount of possibilities but we were not as effective tonight. But I will not keep any negative souvenirs, and it will not spoil our joy at being in the round of 16."
Despite his defiance, Deschamps was just as unwilling to dampen the public feeling in France, where expectations have been raised by the swashbuckling nature of recent victories over Honduras and Switzerland.
"It's not their fault," he added. "Let them be happy. We didn't win this match and we tried everything, but it's not my role to tell them to cool down.
"It's up to us to keep that up and the players need that support, that euphoria. People want to encourage the players and motivate them. That's great.
"I'm not here to calm the people. Some people thought we're the kings of the world after beating Switzerland, but Ecuador have shown they have qualities.
"We're not going to win every match 3-0. Every match is difficult. It's hard to qualify for the round of 16."