I suppose we'll just have to respectfully disagree about which precursors are "finer points of evolution" and which are "major foundational cornerstones" of Open Source.
It was definitely a major thing. But in this discussion, the main points we even focused on about the characteristics of open source when defining it were the same as the FSF:
"When we call software “free,” we mean that it respects the users' essential freedoms: the freedom to run it, to study and change it, and to redistribute copies with or without changes."
The bigger part of the "how we got here" was actually that GitHub ended up creating this ecosystem where collaboration was so open and easier to use to a larger population that we ran into an unintended consequence: maintainers being overwhelmed.
The overall history was intentionally a very quick, broad brush stroke to move into the points that pertained to someone feeling like they had to close their project to contributions.
"When we call software “free,” we mean that it respects the users' essential freedoms: the freedom to run it, to study and change it, and to redistribute copies with or without changes."
The bigger part of the "how we got here" was actually that GitHub ended up creating this ecosystem where collaboration was so open and easier to use to a larger population that we ran into an unintended consequence: maintainers being overwhelmed.
The overall history was intentionally a very quick, broad brush stroke to move into the points that pertained to someone feeling like they had to close their project to contributions.