When working on the code, it's also very useful to access the history without having to open each ticket. Being able to hover a line, having the message of the commit which last changed it, and be able to say "ah ok, it was for this" is quite useful.
> I’m not staying long enough in this company to see them changing from Jira to something else, so I don’t care about the Jira dependence to understand commits
Isn't this a terrible argument in favor of "Fixes NNN" commits? Someone who care about the longevity of a versioned thing should care. If you don't care anyway, nothing matters much.