OpenAI has 4,500 employees and a post-money valuation of $852 billion at its last funding round. You'd think they could get someone who specialises in writing MacOS apps to write their MacOS app.
Toxic corporate culture can go a long way to self-sabotage.
I think the "maturity and humility" phase of the LLM hype cycle is probably still 2-3 years into the future.
And that phase probably comes immediately after the "LLMs overinvestments have caused a massive global recession".