Did I miss the presentation saying there will be feature differentiation? As far as I have seen it's all branding and support, so there isn't really a reason to fork for individuals.
There is for enterprise, but at that point why not either purchase support from the authorized companies or join them
I can see myself not being able to pay for the Enterprise product, but wanting it, and having the core part available to fork and extend.
It's a noble way to guarantee a good management and funding, but it's still rings different to how Open source feels. I don't know how to explain it, really. I'd say the one project that rings somewhat true to that spirit in my mind would be PostgreSQL.
That being said, I will always use and support LibreOffice and their descendants, should they exist in the future.