I disagree with most of the takes here. The reason this will fail has nothing to do with design, designers, or taste.
This will fail because it's already a forgotten side project within anthropic, and anthropic also has pretty bad product DNA as a company. Their headcount is already too large and the culture is already set. They grew revenue so fast they speedran the stage at which you could build software product chops into the company culture (think Google circa 2008 vs. Google circa 2018).
They should focus on what they're good at: the actual AI models and B2B sales. Let OpenAI play early Google and churn through 100 different consumer product experiences to see what sticks, they're better positioned for it anyways.
" the actual AI models and B2B sales."
Maybe they realised its actually a dead-end? Why else would you not double-down and concentrate resources? This would be an amateur error if it turned out to be true.