I think the biggest attraction to ranked slayer is the fact that if you do well but the rest of the team doesn’t, you can still get the win. Slayer is the biggest test of individual skill as you can single handedly carry your team to victory. Playing Team Objective, your team is only as good as your weakest member. Good players are deranking because of one teammate staying as far away from the oddball as possible the entire match.
I know this is a repeat topic of discussion, but we need to continue to emphasize that more ranked playlists are important. Season 2 might be the saving grace for infinite.