You seem to be forgetting that the fight is scored by round. I hope you're not arguing that you won the second. Obviously, you won the third. He won the second. You specifically asked about the first round which seems to be the only questionable round. Let's take a look at the numbers for the first round.
He landed: A combo that cut you, a head punch, and another combo.
He missed: 11 strike attempts, 2 improve position attempts
You landed: A head kick that dropped him and cut him
You missed: 4 clinch attempts
Your total offensive output was one kick.
His total offensive output was two combos and a head punch.
Neither of you did a damn thing on the ground. You started in mount, so you score no points for advancing. You stuffed two improve position attempts. You get some points for that. The rest of the time, you did NOTHING.
As far as you mentioning the commentary, you're talking flavor text. Flavor text is there so that it doesn't just list stats. It's nice to see, but just because it says "a jab," that doesn't literally mean there is a computer simulation of what a jab can do somewhere and it's reporting back. It just means you got hit in the head and a piece of flavor text that satisfied that was selected at random.