These are some fair points. There definitely wasn't an intention of "growth hacking", but just trying to get a lot of things done with only a few people in a short period of time. Requiring admin access really sucks though and is something we've wanted to get rid of for a while.
Please, as an old guy with great thanks for Ollama and great admiration for your abilities, I do feel creating an autorun login item should be something you tell the user you're doing, while giving a nutshell explanation, and opt-out.
I am running ollama in the CLI, under screen, and always disable the ollama daemon. It's hard to configure, while CLI it is just adding a few env vars in front.