"Predatory cuts of revenue" - besides the upfront cost of the model and resources, Hololive's revenue cut pays for talent management (and with very small manager-to-talent ratios), studio space the talents use for events, merchandise management, among other things. Hololive also gives the talents access to events at a scale that no other vtuber corpo is capable of running.
If you want to be a female talent that combines idol work and streaming as a vtuber, Hololive is still the place to be.