https://www.canada.ca/en/immigration-refugees-citizenship/services/application/application-forms-guides/guide-5772-application-sponsor-parents-grandparents.html#gather
Scroll down the page close to the bottom. Under Step 4.
Step 4. Check your application to avoid common mistakes
Passports
- Copies of passports for people being sponsored should include all the pages.
- Copies of the sponsor’s and co-signer’s passport should include the pages showing the passport number, issue and expiry dates, photo, name, surname, and place and date of birth.
- You don’t need to get translations for the stamps in passports.
Not submitting all pages may not be a reason to reject your application. And the processing officer might close an eye and just accept the bio page and stamped pages. However it is also possible they may send the application back to you and say they want ALL pages as per the instructions written in black and white.
So if you prefer not to have possible delays in the application process just send all pages. If you want to save trees and save some time not including all pages, take your chances then go ahead.
It is a small matter really.
I suppose some people could refuse to send ALL pages even when asked to and hire lawyers to fight IRCC on why ALL pages have to be sent etc. Go to court and fight it if you wish.