Technically you can either move the user-generated content exception into the section 29 general fair dealing provision or you could simply make reference to fair use in the provision as it's drafted now. I think you want to keep the conditions in there now that talk about the effect of the mashup on the market for individual work. You want to keep those market protections, but I think it's also appropriate to stipulate that any use be fair and then incorporate the fairness factors the Supreme Court has identified.
On February 3rd, 2011. See this statement in context.