Had Jonathan Brookins had better striking, it's practically certain that he would've been given the nod in his close fight with Erik Koch. Instead, he was out-struck for the majority of the fight and was on the wrong side of the decision, despite controlling the Octagon for most of the fight.
This fight proved the strengths of being well rounded. Brookins is a great Jiu-Jitsu fighter but his striking isn't up to par with the rest of his game.
Koch, on the other hand, has excellent striking and enough grappling to neutralize the attacks of Brookins.
Thus, whenever Brookins attempted anything, Koch was able to avoid damage while landing strikes of his own and ultimately earning the favor of the judges in a controversial decision.
On a side note, Koch's win over Brookins may signify that the judging in MMA has turned a corner. That is to say that its improved. The judges saw that Brookins wasn't able to do a significant amount of damage from the clinch against the cage and that Koch was landing the more effective strikes and thus awarded him the decision.
This fight may be the beginning of judges not always giving takedowns/takedown attempts the advantage on the scorecards.