One difference is that you can continue using your old Atom install, and if it had been "extinguished", you couldn't[1]. The other difference is that EEE was largely about interoperable protocols, not what one person could do with one program - it was about TCP/IP and SMTP and HTML and trying to take those over to Microsoft's benefit[2].
> "And blaming it on the end-user because they fail to pick up a massive product like Atom and develop it themselves seems disingenuous at best.
Yes, welcome to the elephant in the room of Open Source, 'many eyes makes bugs shallow', and the other pretenses we don't question. But at least the principle stands - you can still get the Atom source code[3] and pay someone as a contractor to change it for you, employ some people to work on it, start up a foundation, beg someone. Compared to a closed source program built on patented algorithms when the company shuts down and nobody can practically or legally improve it, or compared to a multiplayer game with online servers which the company shuts down and you can't use the game ever again, it is different.
[1] If you think it's impossible for Microsoft to reach into your Linux machine and take your Atom editor away, you'll see why EEE is a moral-panic rather than a real thing which could ever happen.
[2] you know, like Google actually does with HTML/Chrome strong-arming through Google-custom extensions, AMP pages, and the like. You'll see that this still hasn't resulted in other people being unable to make browsers or webservers or web-like protocols (Gemini).
[3] https://github.com/atom/atom