Something is open source or isn’t. There’s a set, binary definition.
I get the feeling you’re implying a difference/aversion between those two terms which doesn’t exist. This and the combination with a nonsensical statement about amount of GNU packages vs non-GNU packed makes it feel like you’re pushing an agenda here: There’s far more free software than just GNU’s - that’s a success for free software and the GNU project. There’s no connect between the argument you’re obviously implying.
Also HURD never took off - but why should it? The GNU project’s goal is a fully free operating system, with Linux being persuaded to adopt a proper license there’s no real need for HURD. It doesn’t mean it isn’t a fun project.