In 2006 this article was viable , but not now because Firewalls become much more modern and harder to bypass ( HIPS , Self Defense ...) remember Bifrost firewall bypasser system ? , with Hips it simply doesnt work but it is very effective.
I don't think that article was valid even back in 2006 (if ever) -- there were a number of better software firewalls available that included outbound filtering, which had long since been established as a valid approach to security.
That article reflected Microsoft's piss-poor attitude and performance on security, an attitude and performance that hasn't really changed all that much (witness Windows Live OneCare) notwithstanding all its subsequent spin on security.
"A leopard cannot change its spots."
John