It's important to note the context of this. In the book Beneath a Surface where this comes from, Brad Sams notes that Intel is having a problem with Ice Lake and Microsoft is worried that it would be Skylake and Pro 4 / Book 1 all over again. In light of all the "AMD driver bad" comments, this seems to indicate that Microsoft is getting that much doubtful about Ice Lake.
It's important to note the context of this. In the book Beneath a Surface where this comes from, Brad Sams notes that Intel is having a problem with Ice Lake and Microsoft is worried that it would be Skylake and Pro 4 / Book 1 all over again. In light of all the "AMD driver bad" comments, this seems to indicate that Microsoft is getting that much doubtful about Ice Lake.