Hogwash...A lot of data to suggest other companies change their plans according to what Apple does. Making excuses about excuses does not make it so.
Just because PC's can't run OSX, does not mean they don't compete on the same level as apple. ( Surface Pro - iPad / Surface Book - MacBook Pro / MSI Plastic Bucket - Mac Pro )
Heck, even Microsofts Surface Pro is meant to replace the laptop ( Ironic as they they came out with a SurfaceBook ) and in an advertisement pit it against a MacBook Air. So apparently Microsoft thinks so.