You don't learn how to draw b/c you are going to draw your web sites. You learn how to draw, you learn color theory, you learn grid systems, you learn semiotics so you can be a better designer.
That's actually what I meant when I said there was the need for a
graphical and visual tool kit in (doing) design. To me eye as an
education researcher (who barged into your design party), it's not just the tools people use for doing
design that are changing but the tools we use for learning things
I suppose really it's just a question of what exactly people mean by draw at the end of the day. If by learning to draw you mean learning composition, color theory, etc then I think it's more or less impossible to argue with that. The question is whether or not learning to draw means learning to use a stylus for exercising those conceptual learnings in practice. I would say that latter claim is up for debate.