Yes, not sure why it never gave me an option to sign for everyone's behalf. Do you think now having submitted both the applications separately, would it have any impact? I am thinking worse come worse both our application will be processed separately?It seems you and your wife application were not linked, as only one needs to submit the application (payment can be done separately but submission after signing is done by one)
https://www.canada.ca/en/immigration-refugees-citizenship/services/canadian-citizenship/become-canadian-citizen/apply/online-group.html#pay