The entitlement that's constantly on display from Andre "fans" really creeps me out. He doesn't owe you shyt. He didn't promise to perform. He didn't tell you he was going to perform. He showed up to an awards/recognition show, gave a speech and bounced. That shyt happens every year for multiple artists and nobody bats an eye.
Do I think Andre says weird shyt about rap? Yes. Do I find it lame that he gets to half ass on the flute and get Grammy noms while actual musicians are ignored? Yes. But at the end of the day this is about validation and attention. Andre very clearly values validation from a certain segment of music fans, to the point he will come outside for them (interviews, performances, print media, etc). The question for you is...why are you giving him attention? He's not doing what you want, and you're not interested in the music he makes. So why do you care? Move on.