Agree, but if you have addendum (such as for 5406, 5669...) what else you can do?
Also, you can not save form 0130, how could you upload? (this form was fixed later, but too late, a thousands of applicants done theirs at the first hour already. They even change instructions in the Guide 5069 about the photos. How can you upload 2 photos (back & front) in one slot ?
These are IRCC problems