This is a ridiculous explanation. It makes absolutely no sense. So you are saying that you through it was ok to lie and say "no" to the question about previous sponsorships and to fail to declare a past divorce in the application unless IRCC specifically asked you about this? And only then did you have to tell the truth? That response makes zero sense.
Generally speaking, the only thing IRCC hates more than misrepresentation is when people fail to take responsibility for misrepresentation. Let's be honest. It's very clear your wife knew these answers were lies. This is clear to IRCC as well. She hid her past marriage and past sponsor in multiple ways. This was done on purpose.
Anyway, your life. You do what you want.
