D&D 5E - Forgotten Realms canon question

As Scales of War was not set in the Forgotten Realms, why would there be any debate as to whether it was or is FR canon?

Red Hand of Doom wasn't set in the Realms, either. Sure, the Elsir Vale bore some geographical similarities to an area in the Shining South but it was never explicitly set there not were FR trappings - such as FR deities - used.

So, neither are FR canon officially.

ncG1vNJzZmivp6x7prrWqKmlnF6kv6h706GpnpmUqHynu9Ggpq2slaN6s7HApaSsZZOWu7C6jKqsnquknryvepVwaGlpaWQ%3D