The Argentine's dismissal for a foul on Lionel Messi early in the second half proved critical as his countryman went on to convert the subsequent penalty, with Alves making it 2-0 late on.
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However, Alves believes that discussion around the decision is merely an attempt to devalue his side's performance.
"There are a lot of people who can talk about that, all we try to do is do our job, produce big performances, and sometimes you win, sometimes you lose," he told Canal+.
"But people always talk about the referee when Barca win, it's their way of trying to take credit away from us."
Alves felt Barcelona fully deserved their victory, highlighting the quality of their performance both in defence and attack.
He added: "We were very good defensively, we always have a big chance of winning when we don't concede goals and we managed to keep a clean sheet while playing really nice football."