It's all under eligibility to my understanding. It's kind of like a hierarchy.
So you overall have to be eligible to be sponsored.
That means.
-Eligible to be sponsored. (eligibility.)
.....*other things like money, country, your legal standings, citizenship, etc..
.....*Relationship is genuine.
.....*Passes background check
..........-Criminality and Security.
...............*not a criminal, no criminal record, no misrepresentation, etc..
So there's eligibility, like, are you eligible to be sponsored by your spouse through the requirements.
and then there's eligibility, as in, are you eligible to be a PR in Canda due to not having a criminal record.
this is why you don't receive DM until eligibility is passed. and why you can pass BGC before eligibility.