Tbh I do think this is hilarious because this is where Niomi's facade of being any kind of successful businesswoman starts to unravel. Her whole niche/USP in the Youtuber market was the healthy eating stuff before she transitioned that into PB eating, along with the exercise stuff, and the sustainability later on. No matter what she thinks, she is not and never was someone you would've gone to for beauty or fashion content. She built her whole brand around being this PB sustainable guru, she released a PB cookbook etc, and all of that was her choice. Her downfall is clearly that while she only did this to make money, this is an online community who are actually committed to the ethical principles behind the choices she made as a branding choice only, and they're not happy to see someone they supported because they thought she shared those principles simply abandon them now. Somewhere along the way Niomi has become big headed and seems to think this community supported her for her as a person, unconditionally it seems, rather than because of the lifestyle and ethics she pretended to believe in. Now she's decided to shed that, it's completely up to her on a personal level of course - but what is her brand then? Nobody who has supported Niomi along the years followed her to see her flaunting her almost naked body constantly, or endless free holidays, that was never what she was about. She's confused her business for her self and that's reflected in the comments from people who are essentially her customers.
Imagine how Niomi would feel if Farmacy decided that instead of doing ultra expensive PB food they were going to start selling £1 cheeseburgers. People who liked going there when it was a fancy PB cafe wouldn't be compelled to keep going just because they like the cafe - they go there for the product. In essence this is what she's done to her brand, and her customers are entitled to give criticism and feedback on that and unsubscribe etc if they don't like her new branding. She made herself a business and a product and that was her choice.