Funny you gloss over the most important part:

> Legacy applications that run in Virtual 8086 mode or use hardware task management will not work in this mode.

That being said, this isn't worth arguing over. If you can provably run late 1980s-early 1990s 16-bit code in AMD64 compatibility mode, with full execution protections and support of even most not all commercial software; that goes against the general understanding of those architectures. Document it and add it to the academic sphere to expand the knowledge.