It sounds like Kera was some kind of "walkthrough" service that provided a high fidelity explanation of navigating and using an app (think: in-product tour). OP

It sounds like Kera was some kind of "walkthrough" service that provided a high fidelity explanation of navigating and using an app (think: in-product tour). OP has a point when he says the product was fundamentally flawed in that it supported badly designed products.