Another reason for businesses to object is that if a machine is locked Windows-only, it won't be able to boot a hypervisor any more than it will be able to boot Linux.
Of course, it's possible that VMware (say) will throw their commercial hat into the lock-down arena and decide to collect a VMware tax on systems shipped with their hypervisor locked in. However, even that wouldn't be nearly as bad as a Windows-only future.
In a future where Gbits of network bandwidth become effectively free, I'd expect hypervisors on the business desktop to become quite popular.