Aston94 said:
Red card was earned, but the opposing player should have received a yellow card as well. Both players were out of line, and defender was trying to delay the restart. Obviously player throwing ball in took it up a notch, but a yellow should have been given to defender as well.
You can give the yellow to the blue player, but you've got to take care of the maximum offender first. Yellow player has to get the red and go off and everyone has to see it ASAP to prevent other stuff. Then you'll have however much time you need to show a caution to the blue player before the throw-in occurs.
And that's only if you need to show the blue player a caution. By the reaction of the yellow teammates and the time left on the clock, the game might not need a caution to the blue player here. Nobody is gonna look for retribution based on mood of the players in this video.