Why does informal correction only apply to the registration of mortgages and charges?

It also covers the process of the registration of mortgages.

In the common law provinces, security interests are created through the registration of mortgages and charges against the real property concerned.

Informal correction has only been implemented for the registration of mortgages and charges.

The registration of mortgages, and in general of all rights upon immovable property, as it gives great security both to creditors and purchasers, is extremely advantageous to the public.