Might be bigger than that.
Couldn't help myself and I looked at the schedules...not only do we need to win 5 and need Baltimore to lose 5,
Detroit can only win at most 1 of 5 ( 2 vs cle, 3 vs atl)
Sea can only win at most 2 of 5 (vs hou and 4 vs As)
Hou can only win at most 2 of 4 (vs sea and 3 vs LAA)
Sea or Hou is guaranteed 1 win since they play each other
NYY has to first lose at least 1 of 2 games vs. bos, then win their 3 vs Balt.
And if all that happens, KC would tie Balt for the #2 wildcard.
If some other stuff happens, there could be a be a 3, 4, 5 or 6-way tie for the final wildcard at 85 wins.
With or without KC, it seems a multiple-way tie for #2 WC is very possible.