I don't think MS are expecting business to move to win8.
Many have just - or are still moving to win7. It will be a few years before they start thinking about moving again.
By then win8 will be long dead and buried.
I don't think that will have any effect .
If there is huge resistance among consumers - then MS may pay attention - like they did with Vista.
But, if the consumer just puts up with it and moans a bit - then MS won't care.