The paper is mixing definitions of an antivirus product and an internet security suite. For example, in the paper you see this table:
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As you can see in the table header only antivirus products are compared. Let's take G Data-s own antivirus product (G Data AntiVirus 2011, USD 29.95 for 1PC) and have a quick look at its productsheet:
[attachment=86]
As you can see their payed antivirus doesn't offer Cloud Security, Firewall, Spam and E-mail filter either.