Good catch. We had this working before but I guess it's a bug that slipped through. It's been logged.
I don't know if you caught it, but there are some other table shortcuts like CTRL+Enter creates a new row below and CTRL+Shift+Enter creates a new row above.
I don't know if you caught it, but there are some other table shortcuts like CTRL+Enter creates a new row below and CTRL+Shift+Enter creates a new row above.