The UFC doesn't determine how the judges are supposed to score the fight. Nor do the Unified Rules in effect in New Jersey, nor Nevada. FightMetric does not score a fight in the same way as the judges. And finally, the way you as a fan think a fight should be scored has no influence on the judges' criteria.
Instead, the way to score a fight in the state of Indiana is determined by the Athletic Division of the Indiana Gaming Commission. Some states are not very detailed about how to score an MMA fight. But Indiana actually has significant details. Every fan should read the rules as established by the IGC. Here is a link, scroll down to page 81.
For those who do not want to click on the link, here it is copied and pasted:
(c) Each unarmed combat judge must evaluate unarmed combat techniques, in the following order of importance and weight in scoring:
(1) Effective striking.
(2) Effective grappling.
(3) Control of the fighting area.
(4) Effective aggressiveness.
(5) Effective defense.
(d) Effective striking is judged by determining the:
(1) total number of legal strikes landed by a professional unarmed competitor; and
(2) significance of such legal strikes.
(e) Effective grappling is judged by determining the amount of successful executions of a legal takedown and reversals, such as:
(1) takedowns from standing position to mount position;
(2) passing the guard to mount position; and
(3) a bottom positioned professional unarmed competitor using an active, threatening guard.
(f) Fighting area control is judged by determining which professional unarmed competitor is dictating the pace, location and position of the professional unarmed combat bout, such as:
(1) countering a professional unarmed competitor's attempt at takedown by remaining standing and legally striking;
(2) taking down an opponent to force a ground fight;
(3) creating threatening submission attempts;
(4) passing the guard to achieve mount; and
(5) creating striking opportunities.
(g) Effective aggressiveness means moving forward and landing a legal strike or takedown.
(h) Effective defense means avoiding being struck, taken down, or reversed while countering with offensive attacks.
(i) Each unarmed combat judge must use the following objective scoring criteria when scoring a round:
(1) A round is to be scored as a 10-10 round when:
(A) both professional unarmed competitors appear to be fighting evenly; and
(B) neither professional unarmed competitor shows clear dominance in a round.
(2) A round is to be scored as a 10-9 round when a professional unarmed competitor wins the round by a close margin.
(3) A round is to be scored as a 10-8 round when a professional unarmed competitor wins by having overwhelmingly dominated the round.
(4) A round is to be scored as a 10-7 round when a professional unarmed competitor wins by having totally dominated the round.
(j) When scoring, each unarmed combat judge must consider the length of time the professional unarmed competitors are either standing or on the ground, as follows:
(1) Notwithstanding subsection (c), if the professional unarmed competitors spend a majority of a round on the fighting area ground, then:
(A) effective grappling is weighed first; and
(B) effective striking is then weighed.
(2) If the professional unarmed competitors spend a majority of a round standing, then:
(A) effective striking is weighed first; and
(B) effective grappling is then weighed.
(3) If a round ends with a relatively even amount of standing and ground fighting, striking and grappling are weighed equally.
You can read it yourself, and analyze round 2 of Sherk-Dunham using these criteria. But there is no need to say that it is debatable who controlled the Octagon, to posit that takedowns that lead to nothing should not be counted, or to question whether you should count failed submission attempts. The rules that the judges must follow make those issues pretty clear.
Of course, there is certainly some ambiguity based on the use of "such as" in two of the provisions. So feel free to argue about that until the next UFC event. Hope this post was helpful.