No, a git commit is not transparent to product, QA, devops, infosec teams.
Opening a jira issue to document a change that everyone should be aware of can take me literally one minute, and I've even assigned it to the sprint and version.
"Developers don't like JIRA, they love GitHub": these are some generalizations that can often be true. However, you can also automate JIRA using your VCS of choice. You somehow make the assumption that only GitHub git + GitHub issues can be automated.