Haven't it always been pretty clear that Wine could run Microsoft Office, as long as they don't use some weird low-level tricks (which admittedly it does)?
But for that matter, Linux doesn't have MS Office only because it's desktop share is next to nothing (not the same amount atleast, there are Linux office suites out too). Mac OSX has been getting more and more office suites lately as it's marketshare has been growing. So would Linux aswell if it ever gained more users.
As long as the OS isn't completely locked down from the user, there will be office suites. Windows, Mac, or Linux cant defend you from that. But none of us really want a locked down OS. And as long as the users are stupid their computers will get infected.
It's just about the marketshare.
FTFY