Les Gones were held to a goalless draw at the Stade de Gerland on Saturday in Ligue 1, which means that they have won just once in their last nine matches.
However, Aulas has played down the disappointment of the result due to being without nine first-team players.
"It's always disappointing when we don't win at Gerland, but I think you have to take the circumstances into account," Aulas told reporters. "No team with nine absences could resist the pressure Lille put on us. Eight injuries and one suspension, no less.
"Getting a draw in these conditions should be considered an achievement, and one that, in the past, we wouldn't always have been able to pull off.
"I'm not satisfied, but I think that the players turned in a good performance and showed a lot of courage."
Lyon host Guimaraes in the Europa League on Thursday.