It seems like the airstrikes damaging the crossing is a more recent development that I wasn’t aware of. Your CBC article and the CNN article posted above are only an hour old. Your Times of Israel article says this:
The Rafah crossing was open for periods Tuesday morning, but Egypt only allowed through Palestinians who’d already gotten authorization to leave the Strip.
On the Rafah crossing’s Facebook page, Gazans lamented the decision to not open the crossing for anyone wishing to leave, with one user writing: “Interior Ministry, this is not the time to put someone in danger who survived a bombing and miraculously reached the crossing. We cannot return to death.”