I didn't pay enough attention to the spots to have an opinion on it, but if your agenda is to hurt a team, there are much better ways to do it than to short them by six inches or a foot on some spots. Especially an offense as strong as Buffalo's, which is usually automatic in short yardage situations.
Meanwhile, it was obvious in real time that the Bills defender jumped offside way before any false starts occurred, yet they called a false start that put KC in 3rd and 15 and killed a drive. On another play, a blatant facemask on the ball carrier was ignored, which would have set KC up for a FG try at minimum. Instead they punted.