I fint it strange that people keep blaming the shortcomings of IE6+7 on the CSS standard.
The working draft you refer to is a new model which is more powerful than either HTML tables or CSS2.
The question was whether CSS supports the primitives required to do grid layouts without coupling the CSS to HTML, effectively requiring the two of them to be treated as object code.
If you're going to require that the markup contain divs that are ordered and nested just so, so that they can be styled to layout like a table, then you might as well just use a table. Either way you are coupling presentation to semantics.
You don't have to use divs, you can use semantic elements (P, whatever) if that is appropriate for the content.
You definitely might not just as well use a table. The trouble with tables for layout is that they have the wrong semantics, which means they makes the page less accessible.
Designers have been trying to create grid-based layouts since the beginning of the graphical web. CSS was created after that, and its creators did not see fit to bestow on us the basic tools (flexible boxes) that could be used to create these layouts elegantly.
As a result HTML and CSS have always been coupled. Only by using both together, can engineers create the layouts designers want.
This most certainly is a failing of CSS. Sadly, it is also a failing of the web development community, who looked for progress from the one group of people who were completely incapable of delivering it.