Why do we need apps like cursor?

I'm a Claude code and codex maxi, use both on the highest plan on my terminal and the web interface for heavy research and sometimes design. Now the whole moat of apps like cursor is multi agent orchestration if I understand correctly? And no cursor new coding model is not a moat there is no way on earth that they can compete with anthr/openai. For me I just launch claude code and tell it to run codex as one of it's sub-agents and split the work with sub-agents like half opus's and half 5.4's. What are y'all thoughts? I think any wrapper and orchestrator layer is going to 0