It would be benefitial for troubleshooting and reassuring user how things got to make that backup progress bar show more information such as what file is being processed currently and what is being done (currently it just shows dummy labels like backing up and encrypting..) as it sometimes gets stuck and i dont even know what file caused it..
Ultimate upgrade would make that progress bar clickable and display full queee of the photos/videos that are being processed with their status also the upload progress in term of megabites uploaded for larger files..