Yeah I don't know a lot of details, am not a developer, and coming from the [completely juvenile] level of "oh wouldn't it be cool if peeps can use that info to make new editors." Superficially the decision seems extremely broad, in that elements privately owned were taken and used without permission. It's shades of gray that differentiate it from "I will take this exclusive streaming show, transform it by putting on VHS, so now it can interface with a VCR, and sell a bunch of copies." Yet maybe the decision really is as narrow as implementing an API. Hopefully in the next few days there will be more news/analysis about it.
Contrast with the big lawsuit a couple years ago between the estate of Marvin Gaye & the authors of the song "Blurred Lines." Blurred Lines took some very basic musical elements like key, tempo and instrumentation--not sampling, not the same melody, different tonal mode--and was found to be infringing. Completely contradictory although I believe it was decided by a jury. In my opinion both of these cases had the wrong outcome, even if I childishly want some genius to make a good Link to the Past editor.