The Blues somehow overcame John Terry's first-half sending off at the Nou Camp to progress to the Munich finale at the expense of Barca on Tuesday night.
The Chelsea captain kneed Alexis Sanchez from behind and will miss the final against Real Madrid or Bayern Munich as a result, and will be joined on the sidelines by Ramires, Branislav Ivanovic and Raul Meireles. The trio incurred a one-match ban after collecting bookings and Mikel is frustrated by the current system.
Asked if he felt his team-mates have been robbed of their dream, the Nigeria international said: "Yes, the yellow cards should be cancelled going into a final and UEFA should look into that. When you get to the final everyone wants to see the best players and it's a shame that JT, Ivanovic, Meireles and Ramires won't play.
"The JT one was soft from what I saw and it was a yellow card. I think Sanchez made the most of it. Alexis did the same to me as well. He got me yellow carded.
"There was a little touch and he rolled on the ground 10 times. He definitely made the most of it. The four players were devastated in the dressing room. They're happy for the team but are very disappointed to not be in the final. We will go out to win the trophy for them."