Remember that if the first of those contentious “ball” frees was paid the other ones would not have occurred?
One thing I learned was that even when the ball hits the ground the tackled player who had prior opportunity can dispose of it legally by just punching it away or even kicking it off the ground. Is that new? Its no wonder players try to go to ground when they are tackled, so they can get high, “in the back”, trip, htm, “dislodged in the tackle” decisions awarded in their favour. They also get more time to dispose of the ball.
Seems to me, when you tackle a player, you really need to hold him up, pin both arms and place your leg around/across at least one of his legs to maximise your chances of earning a free.