Yes. At this point, according to Statistics Canada, approximately three million Canadians provide some care for an older person. It's also estimated that some 25% of that number are people who would be considered to provide heavy care; they would be the kind of people who would have to cut back their hours of work or quit their jobs altogether to provide the care. Those would be the people we would concern ourselves with the most, the people who would not be able to have enough income to take advantage of the tax credit; indeed, even if this $300 tax credit were made refundable, it would be insufficient.
On October 23rd, 2012. See this statement in context.