In particular, see item #1 in her list:
1. Realize that feeling uncomfortable is healthy, normal, and part of the growth process — this includes the discomfort we feel when we receive feedback. [...] Feeling uncomfortable is a normal and necessary part of life , and when we make space for the discomfort and permit ourselves to feel the difficult feelings that come along with growth, that’s where the magic can happen. [...]
Feedback can cause discomfort.