I watched round 5 and 6 of the fight, this Gonzalez was really outclassed by Jerwin. However, I'm not totally sold on his performance, as compare to let's say Casimero. Maybe it was because of the opposition in front of him, but if he did face other champion in his decision, he will be in a tough fight let's say Estrada.
Well it's good that he won and successful on his 8th title defense. But it was not very impressive, missed a lot of shots and he looks very awkward, IMHO. But congrats anyways.
A win is still a win, style makes fight so perhaps Jerwin wasn't able to showcase his full talent because of the way Gonzales fight. And for the record, he is not the original fighter that he supposed to face so somewhere along the way his preparation was different against a type of fighter like Gonzalez.
But I would agree that he should really face tougher opponents or even champion vs champion here. He had defended his belt many times so it's time for him and MP promotions to look for bigger fights in the future to see how good Jerwin really is.