He's loud and Irish, something that Dana knows will get a lot of people paying to see him. Dana is a businessman he only treats you like a favorite if he thinks you're a good investment, whether you love Conor or hate him from a business perspective, having a guy like that fighting in the UFC is good business because he sells fights with his big mouth.
Not saying that he can't back it up but promotion is still a big prt of this sport and a lot of fighters don't seem to understand that.
I'm not sure why people are acting like Dana isn't accessible. I don't think this is a big deal at all. I'm guessing Conor asked and Dana took him for a spin. People that have Ferrari's love to show them off.