I think people have the mentality that because he survived and gave Golovkin a little trouble he automatically wins the fight. Jacobs was out landed, floored and wobbled on a few occasions, he lost the fight even though Golovkin looked far from his best.
I lost a bit of respect for Jacobs with the shenanigans he pulled on fight day when he shunned the IBF same day weigh-in, rumours are he weighed 180-190lb in the ring.
I believe Golovkin is on the slide but that was still enough to beat the next best Middleweight who was huge on fight night, Canelo wouldn't pose the same problems for GGG