Agreed. Immigration lets you know to inform them of any changes in your family composition before you land. When you landed on the visa you got as a single person having been married in the meantime, you actually committed misrepresentation. Immigration could revoke your PR for this and even if they do not, you will never be able to sponsor your wife because you did not add her to your application and she did not have her background checks and medical exam.
If your wife wants to immigrate, she will have to do it on her own.
If your wife wants to immigrate, she will have to do it on her own.