I saw the prideful dishonesty he was spouting afterward and it really made him one of the less likeable fighters in the UFC to me just from that experience with him. I don't know if he should have to go so far as to admit he lost, as most would rationalize in that situation. But he could at least just declare he edged him, or even better claimed it could have went either way. Something tame or diplomatic like that. Most fighters, as prideful as they even are, would be in that camp. Instead he's bringing the definitives about how the outcome should have went in his favor.
It was kind of shameful, and if he's as dishonest with himself as he is with everybody else it doesn't say much about developing necessary skills to legitimately win fights long-term in UFC.