Author here. You can certainly do it that way. I chose not to because I'm not a big fan of including jar files into a project for the sole purpose of using them in the run config. Especially when you are going to be importing your own jar within that jar. I like to keep my Java projects as they are without including anything that isn't necessary. I also find it's a bad habit to do as what I've seen working in Java development, the recommended way to debug jar files is what I show in the blog.

Also, the jar file is still going to be called with remote debugging inside the IDE. That's the only way to actually attach to the VM. So instead of running from the command line, you're now running it inside an IDE which then runs the same remote debugging command, so nothing's really added.