Fighting ( boxing , MMA) gives a writer the platform to stretch hyperbole. Kelly has nailed the essence of this particular fight ( boxing match) in context with MMA and the two principal fighters involved. If Conor McGregor weren't so bankable and Floyd Mayweather so dominant in boxing, this fight would never have happened. McGregor should be capable for about two , maybe three rounds then it's a slow torturous defeat. 
That millions would pay up to $100.00 for a pay per view broadcast to see an over hyped hybrid fight is testament to the curiosity and salaciousness of the sweet science. I won't be watching but I am interested in the result. 
Conor McGregor would do well not to embarrass himself or MMA. I suspect he will do both but not before cashing in massively.