I mean, teaching is probably the least well fit a task could be for an AI robot, but I'm honestly not surprised at all at a sex doll company working on a project for building AI powered robots for use cases where human-like interaction is important. It's going to fail for teaching applications, but for say customer service or retail...

Sex doll companies are far more experienced at wrapping a decently realistic looking human form around some mechanisms than the sort of people who normally build bipedal robots. Building "skins" to wrap around bipedal robot frames to make them easier to anthropomorphize for customer facing jobs seems like a logical direction to expand into for a sex doll company looking to diversify. Teaching is just...very the wrong application of this.