Windows 8 Professional includes the Hyper-V hypervisor. Many PC's recent enough to have UEFI will have a compatible processor (i3 and later).
For many tasks a virtualized installation probably has adequate performance - contemporary hardware and Hyper-V are pretty powerful relative to the machines of a few tears ago.
Of course, for some, not booting directly to Linux might create a performance concern. For others it is an ideological issue. However, one which is created by the decisions of hardware vendors and market realities, not Microsoft.