Ball did hit the ground but no one is surprised a 50/50 call once again goes the chiefs way.
How did that go the Chiefs way?
They called it a catch for the Chiefs on the play.
If the review shows the DB gets it, congrats they take the holding penalty on the play and its still chiefs ball and a 1st down. Chiefs likely run out the entire clock and score, rather than scoring and letting the bills have time to end the half.
If the review shows an incomplete, same thing, first down and yardage.
If the review shows a catch, 1st and goal.
There wasn't evidence to overturn, thus the call stands.
1st down for the chiefs regardless of how you want it.