She may have a bunch of pressure on her to make some noise about the app. However, if you can't stand the heat...don't get into "commando marketing."
If you don't want to hear very directly how customers feel about your marketing approach and products, not the place to be.
Her apology and clarification of her role and intentions would have sufficed...deleting her own posts is odd and self-defeating for her and her company. Unfortunate outcome.