The La Liga champions were held at the Vicente Calderon, and Gabi refused to condemn the tactics used by the visitors, but admitted that the result was a disappointment.
"I think we had enough chances to win the game easily," Gabi told AS.
"For me, we just lacked that final touch up front. We need to keep working. We're gutted, because we can't drop points here at home.
"Every side plays matches as they see fit, and they should be given credit for the point they've picked up."
Los Rojiblancos are currently third in La Liga.