No, his arguement is flawed because Word is part of an office suite.
Business folks need email clients, spreadsheet apps, and presentation software. Word is integratal to the Office suite, and therefore will be around for a long time.
Not a fan of MSOffice, but it is ubiquitous in the business world.
Naw, it is just that SCO has made so many outlandish claims that there is a mountain of material to refute them all.
Kudos, Groklaw. What an amazing blog. What an example of what online collaboration can achieve.