I'd give or a chance should they have a great tournament.
The purpose was probably two fold, to encourage nations to attend those events and to potentially reward a team who wouldn't qualify through the rankings and got a freak result (unlikely, but technically possible). While any nation which qualifies through the Opens would have likely qualified through the rankings it does have an implication for South Korea.
The quotas are attached by name so if one of the top South Korean pair qualifies to the Olympics at the Opens the other pair is denied a spot even if they finished with a higher ranking. Of course, what will likely happen is that South Korea would declined the Open quota and just take the ranking quota, but we could see a court challenge because of it.