Golovkin is clearly class. The problem is there's no star middleweight barring Martinez and Chavez jr. So blasting out Macklin will be very impressive to the non-braindead hardcore fan. However, unless Golovkin can get a "star" name he will never crossover to the general fan.

Mackilin is a good proven fighter. If he does well Golovkin will get called overrated. If he gets slaughtered Macklin will get called toilet.

I see it as a no-win fight for Golovkin (even though it's a genuine good one for the division).