I would add that its not just that you can interact with different objects in the markup, but that there's a huge collection of operations built into Org-mode on emacs that does interact with them this way. You don't need to write code to interact with the org markdown; you just use the already written org features.

For example, the ability to search a file or set of files and collect responsive org heading items in a separate "Agenda" buffer is hugely empowering for a lot of different uses. Org-mode on emacs has both very broad and very deep functionality.

It's not necessarily easy to learn, but you can ignore the more complicated stuff if you want, just use the very simple basics and remain ignorant of the much deeper functionality that's there for people who want to make use of it. Or, better, start simple and learn more complex bits and pieces as you go; there's an active and friendly org community that helps with that.