Chelsea's coach, Enzo Maresca, stated that the red card was correct and that Chelsea deserved to lose. Obi Mikel, who spoke about the incident, said that Jackson's mistake was "unbelievable" and that he should not have made it. He added that Jackson had made similar mistakes in the past, including a red card in an important game against Newcastle.
Obi Mikel also mentioned that Jackson's frustration about not starting the game was understandable, but he should have managed it better. He said that Jackson needs to have a talk with himself and think about his career at Chelsea. Obi Mikel emphasized the importance of competition and that Jackson should have used his frustration to drive him forward.
Obi Mikel's comments were likely meant to motivate Jackson to improve and not make the same mistakes in the future. He wanted Jackson to think about his career and where he wants to go with it.