Yup.  I got my cancellation for June 14 yesterday and my refund from the deposit/fees.  You can go, but you have to be a local.  I don't think coming from another province would fly, much less the US side.  That and the border is still closed even if the park is open.  I went to the reservation site to try to get something in for late July and all entry points for all days show unavailable at this point.  Trying to stay optimistic....

pd