I think others have explained this but I'll address it since you asked me.
In a nutshell no, you don't understand DOGSO and the considerations.
The 2 defenders that are "even" are not relevant under the Laws of the Game. As
@Surfref stated, we look at the 4 d's per US Soccer's instructions (
https://www.ussoccer.com/stories/2014/03/17/13/23/obvious-goal-scoring-opportunity-denied-the-4-ds), which provide:
In order for a player to be sent off for denying an "obvious goal-scoring opportunity," four elements must be present:
- Number of Defenders -- not more than one defender between the foul and the goal, not counting the defender who committed the foul
- Distance to goal -- the closer the foul is to the goal, the more likely it is an obvious goal-scoring opportunity.
- Distance to ball -- the attacker must have been close enough to the ball at the time of the foul to have continued playing the ball
- Direction of play -- the attacker must have been moving toward the goal at the time the foul was committed
The last 2 considerations are met. Attacker had ball at her feet and was moving in direction of opponents goal.
Number of Defenders:
"Not more than 1 defender between foul and goal."
Being "even" with the player is irrelevant. Being faster than the player and coming from the side (even or behind) is irrelevant. Have numbers (2, 3, 4 10) that are all even, faster and slightly behind is irrelevant. The only relevant consideration is was there any other defenders BETWEEN the attacker and the goalkeeper (in this instance). If not, this element is satisfied.
I disagree with
@Paul Spacey who relies on this statement "it is clear that the covering defender is going to get back to cut her off (due to the attacking players' first touch not being great)." This consideration would be improper under the letter of Law and considerations.
Because the other 2 defenders were not between the attacker and goal when fouled, they are not relevant.
Distance to Goal - the foul appears to have occurred 30 to 20 yards from goal, which is close enough in the mind of this referee given the skill of the players.
Red Card for DOGSO is within the realm of appropriateness.