Millie is not a horrible parent. Blossomfall was a full grown adult clinging to her mom because how dare her mother make sure her literally paralyzed child lived and was okay. Blossomfall also did stupid things to get her attention and deserved the consequences. She was a brat.
On one hand, I am loathe to spend money on something as fleeting and useless as a tumblr post. On the other hand, I want to make everyone look at this picture of my cat: