The conference will drop its two divisions as it grows to 16 teams, but it deferred a final decision on whether to expand from eight conference games to nine.
A chair umpire initially gave a warning to Miyu Kato for swatting a ball that hit the ballgirl near the head. Her opponents urged officials to reconsider.
The Super Bowl champions were honored by the president, who joked about his wife's "rabid" support for the Eagles and said Kansas City was building a dynasty.
With hazardous air afflicting massive swaths of the U.S. and Canada, Yankees and Phillies games were postponed Wednesday, as was a WNBA game and one in the NWSL.