Every creative person experiences periods of burnout or creative stagnation, and content creators are no exception. Sometimes the healthiest part of the creative process is stepping away for a while, gaining new experiences, and returning with a fresh perspective. This isn't unique to artists. Nearly everyone has experienced burnout or felt stuck at some point in their professional or personal life.
That said, for all the complaints being voiced, she ultimately doesn't owe her audience new content. If she chooses to let a third-rate management company recycle her older material, that's her decision. It may damage her brand, but that's a lesson she'll have to learn on her own.
If you're unhappy with that decision, the most effective response is simple: don't subscribe and don't buy the content. Unless this is your first week on the internet or SimpCity, everyone already knows how this works. Complaining may be cathartic in the moment, but it doesn't accomplish much beyond preaching to the choir.