1. Referees ignoring the opposition player standing yards in front of the player trying to take a quick free-kick. This is rarely reprimanded and almost never with a yellow card. Let's get this straight, the team that has committed the foul has zero right to prevent the quick free-kick. The free-kick is meant to penalise them, and one of the consequences of that is the potential of a quick free-kick catching the opposition team out of shape!
2. Referees never being ready for the quick free-kick, and usually calling back the play for no reason other than the fact that they were simply not ready. Lest you think this is has always been the case, it hasn't. I watch a great deal of older games in the 80's/90's/00's, from multiple leagues, both domestic and foreign, and referees permitted quick free-kicks at a significantly higher rate than they do now. There's no reason or logic behind it, or why X referee isn't switched-on and ready for the play to restart.