Especially if you have 'events' in your pre-5 years ago background you'd rather not divulge/discuss on the application.
The CFO/RCMP probably know about them anyway and if they mattered you wouldn't have a license to renew but they want to bait you into lying so they can disqualify your application and probably charge you for giving false/misleading/incomplete information on a license application so you won't be able to get a PAL in the future.
Nobody knows what kind of 'booby trap' questions will be on the 'new applicant' & renewal applications so best to renew NOW before c71 becomes law.