To me, acting based on excitement versus fear is a clear cut case of two individuals doing the same thing for different reasons. Although, no a third way would be inaction or avoidance. But the mountain example doesn't make this clear.
To be clear, secure person A climbs mountain in anticipation of the summit, fearful B climbs out of fear of being left behind or starved to death and person C with the paralyzing self-doubt avoids the climb. Self-hatred and fear are not the same here, and as such produce different outcomes.

"If that’s you, then you’re approach-oriented. On the other hand, if just thinking about the mountain fills you with a sense of dread and an absolute certainty that you are going to make an utter fool of yourself and that you’re doomed to fail, you’re avoidance-oriented."

I paused reading to comment, so I will be interested to read in the rest of the article how the author handles fear versus avoidance, especially since it is easier for me to link the one to a motivating force and the other to a passive state or attachment style.
I particularly appreciate the author for tackling the topic of unloved daughters and will look for more by Peg Streep to read on my own. Overall eye-opening, thanks!