I agree you shouldn't use it for your own projects, but Llama is a very valuable tool as a locally available LLM, it would be an overreaction to refuse to use Llama just because it's not a fully FOSS licence.
It does not physically stop you doing whatever you want with it, that's the main thing, just legally. Compared to tools like Google Gemini or ChatGPT which try to technically, not just legally, prevent you using it how you wish.