Yeah it's pretty out of date. You might then "eh that doesn't matter, I like things to be stable and I'll just imagine I'm three years in the past".

That works until some software introduces a bug fix or a new feature that you really need and you can't use it because of your distro's weird update policies.

You will very quickly find that you don't care anywhere near as much about theoretical stability as you do about a concrete feature or bugfix that is available but inaccessible.

I say theoretical because in practice Debian stable isn't really much more stable than more up-to-date distros. It just has fewer new bugs and more old bugs.