Although it wasn't clear on what made Misty wanted to be a part of the mane 5 in the first place, Even though She wasn't in her Redemption state yet as there is a lot more to her story arc that has to be Explored and Development as well. But overall I'm happy Misty's joining the good side for once as it's Possible foreshadowing for Make your Mark's Next chapter.
And I decided to compare my drawing to this little moment since I and others (Sort a) Called it.