I reckon he's just attempting to goad Charles into calling him out IF Charles beats Islam.
IF Islam wins, maybe Conor will get brave and then tweet and delete some insecure ramblings aimed at Islam and Khabib.
But really I think he does a lot of this to just get people talking about him. He's about to star or appear in a Hollywood film; why keep fighting if he can keep building his star power? The guy is always gonna be making money no matter what. He's set for life now whether it's promoting brands, reality TV, film and there's always the last resort of fighting again where he can sit on a contract demanding more money until he agrees to whatever will set him up for the next couple years