Indeed, would potentially reduce the number of extension applications made from within Canada with a longer stay. Those, however, are not numerous at this point. Over the course of the 10 years that the super visa has existed so far, approximately 32,000 extensions have been submitted. When you look at approximately 17,000 super visas applied for and issued each year, that's a relatively small number over the course of 10 years.
On May 31st, 2022. See this statement in context.