The WWW is a network built on a set of protocols. HTML is a markup language that allows for (indeed, that is is designed to facilitate) embedding and linking binary and executable content, including javascript, flash, java, audio, video, as well as marking up text. HTML is one, but not the only, content-type which can be distributed across the WWW. This is fundamental to the design of HTTP and the intent of HTML and the web itself.
By your rationale, no site created after the addition of the <SCRIPT>, <APPLET> or <OBJECT> tags in HTML could be considered a part of the WWW, which would exclude the entirety of the web after HTML 3.2. This is "not even wrong" levels of ridiculousness.
