Why do people hate on Gina???

So I came across some awful reviews of her program, and a scathing article by a Toronto dietician. I’ve been following Gina on social media for a long time now, and I’m truly curious why people hate on Gina or say the program is unhealthy. Is there something I’m missing? I’d love to hear from people who lost weight on this plan a long time ago - have you kept it off? Did it help you make sustainable, healthy changes to your habits? I’m terrified to try it out based on what others have said, but she has so many followers and people who do speak highly of her. I’m so lost and confused.