@elmer: So according to the announcement, it's that security related update for these processors will not be shipped for these processors (Why? Security update for processors???).
That's different than "these processors are no longer supported for that OS" and will not prevent people from downgrading (you can still downgrade, just you won't get update after 2017/07/17).
I have question here. Since Microsoft product support cycle clearly states that the extended support for Win7 will end in 2020, it's that even legal for Microsoft to singlesided-ly drop support for certain category of processors in the middle of supported range? Companies which already bought these desktops/notebooks certainly do expect Win7 installed there get support until the already announced 2020 date.