This is a bit like saying stop using Ubuntu, use Debian instead.

Both llama.cpp and ollama are great and focused on different things and yet complement each other (both can be true at the same time!)

Ollama has great ux and also supports inference via mlx, which has better performance on apple silicon than llama.cpp

I'm using llama.cpp, ollama, lm studio, mlx etc etc depending on what is most convenient for me at the time to get done what I want to get done (e.g. a specific model config to run, mcp, just try a prompt quickly, …)