I think there’s an English as a second language problem with the title.
As oautholaf points out, this is a subsystem that runs Linux binaries under Darwin, not a subsystem for Darwin compatibility under Linux.
As oautholaf points out, this is a subsystem that runs Linux binaries under Darwin, not a subsystem for Darwin compatibility under Linux.
"Windows Linux Subsystem" would be better and still fit that criteria. Just like the old thing they used to have was called "posix subsystem". Throw "Windows" at the start and you are good...
OK, it's a "Subsystem", which is a subset of a system. What kind of subsystem? A Windows subsystem! This part of the system does Windows... and you're already wrong. The Windows part isn't what the subsystem does, it's what the subsystem is a subset of. The subsystem does Linux and it's part of Windows. Saying it's a Windows Subsystem for Linux implies it's something like WINE, only moved into the kernel, if you're old enough to remember the "personalities" concept.
That said, I think their interpretation was likely different: it's the =Windows subsystem that is meant for Linux, kind of like how earlier they had SUA, the (Windows) Subsystem (meant) for Unix-based Applications.