I so agree they are toying with people's lives. I'm all for vetting people, and doing background checks. But this is too much. How much are you going to accomplish by so deeply vetting someone who can cross the border so easily with their Canadian passport without ever applying for immigration?
If someone with a Canadian passport had nefarious intentions, I highly doubt they'd go through the long and arduous process of finding a US citizen spouse just so they can apply for immigration and enter the US to carry out whatever evil plans they had.
Wouldn't they be able to do the same just by "visiting" the US? It's laughable that you'd allow these evil Canadians to cross the border without a visa or a background check for a visit, but god forbid they want to marry someone from the States they'll get treated as if the immigration is some unique treasure they are after to escape their third-world problems in Canada or to carry out some evil intentions.
It is beyond me what immigration is hoping to accomplish by putting people (who can otherwise cross the border so easily) in AP after they have already gone through background checks and provided police certificates. The only thing they're doing is keeping families from reuniting, and causing unnecessary financial and emotional hardship.