My interpretation is that this week is used to determine both which 2 teams would be the two wild card teams AND which of the two wild card teams would qualify for the playoffs.
For this week, if :OAK: to go 0-8 and score 100 points, :TEX: to go 8-0, and :BOS: goes 4-4 and scores 200 points then :TEX: and :BOS: would both make the playoffs along with :NYY: and :CLE:
NL is much more open :STL: and :LAD: are in for sure, the wildcard spots and NL east is still up for grabs.