Probably because "Visual Studio Code" is a Microsoft trademark, but the plugin works with all the IDEs based on the open source base (VSCodium, Cursor, etc.)
It says IDE plug-in
Yes, that's the question. It doesn't appear to support any IDEs except VSCode so why use the general term and give an incorrect impression?
Probably because it's based on an idea published in a paper, it's not limited to this particular repo
are we seriously nitpicking every single little thing???
Doesn't seem like a nitpick to me. I use only intellij which is an IDE.
It's like someone would say they created an app for mobile phones (*only for iPhone 17)
It wouldn't be weird to call an iPhone app an app for mobile phones. If I make an IntelliJ-only plugin, that's still an IDE plugin even if it doesn't work for all the IDEs in existence.