The Blaugrana boss was bitter in his assessment of the former Chelsea manager, after hinting he was dishonest in his conduct, but while the 49-year-old did not claim to be the perfect human being, he did not see a problem in being such an outspoken character.
"[Guardiola's] tone seemed normal. What I can say is that I'm full of imperfections as everyone knows," said Mourinho after the match.
"I choose not to hide my faults and my errors. As imperfect as I am, if I see something I don't like, I say it. Others use a third party."
Mourinho then congratulated match referee Eduardo Iturralde, who was replaced at half-time due to injury but continued as the fourth official, for his level of officiating at the Benito Villamarin, opining that his smooth operation contributed to an engrossing encounter.
"I did not see the second goal for Betis, but both Iturralde and his deputies adapted well to the characteristics of the match, we all liked his philosophy," he continued.
"Football is to be played, not stopped constantly. They contributed to the fantastic game we saw."
The Portuguese also offered his analysis of the fixture and did not hesitate to mention a draw was arguably the fairest outcome on the night, after praising Betis' attacking intent and the coaching philosophy of opposite number Pepe Mel.
"Sometimes it's better to be more defensive and being in control, but neither team was defensive," mused Mourinho. "The match was full of twists and turns, so a draw would probably have been more appropriate.
"Betis are not a big team, but they rose to the occasion and pleased the purists, as they did in the Copa del Rey against Barcelona. The philosophy of their coach is fantastic."
Real Madrid have moved provisionally 13 points clear of Barcelona at the league's summit.
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