Do you have a source for this, or is it just your assumption?
"Supported lifetime for the device" does not necessarily mean "supported lifetime for Windows 10." Although your interpretation may be correct, they have (intentionally or otherwise) used ambiguous wording in how they describe this.
"Supported lifetime for the device" does not necessarily mean "supported lifetime for Windows 10." Although your interpretation may be correct, they have (intentionally or otherwise) used ambiguous wording in how they describe this.