Milan Badelj's goal should've been disallowed, as Nikola Kalinic was in an offside position and jumped to let the ball through.
“The team is improving, above all in the ambition to propose more spectacular football," Sousa told Mediaset Premium.
“When you play with this courage, you deserve to be lucky. So far we've had luck against us when facing strong sides, but the game was balanced and Roma had the same opportunities as us.
Sousa had criticised Federico Bernardeschi during the week, but the Italy international was introduced for the closing stages.
“He looked very good. I knew he didn't have much physical sharpness at the moment, but he was more positive, attacked the space and will certainly improve to help us this season."