Loki is open source. OP should take some of that frustrated energy and create a PR to improve the docs. I don't think this is a matter of Grafana Inc not wanting people to run Loki themselves but rather a resource constraints issue.
Unfortunately, Grafana discourages contributions from the community, even for its documentation.
Every day I wake up and spend at least an hour reading and responding to issues and PRs in the Tempo repo.