I don't think the Chiefs get any more calls they shouldn't get that other teams don't get. Anytime a team has success, all focus is going to be on them, and every little thing will get brought up. The calls today have been the correct calls, whether or not some want to admit it. Will they get calls they shouldn't? Yes, but other teams will as well. It's just most of those teams don't have games of any impact right now.
Now, this season, I can definitely say I haven't seen a team that has a record like the Chiefs get so many breaks go their way in a season. They have been very fortunate in some of their close games, but that happens.