You can't limit it but what Luiz did is dangerous. Take rugby as an example, occasionally a player takes another out in mid-air, they don't mean it and it is an accident, something completely unavoidable but it is dangerous, so the player gets a yellow card an 10 minutes in the bin.
Even if Luiz was booked for a dangerous tackle (as you would a high boot) then players may modify their behaviour and not go charging in at the near post and attacking the man.
The bit that is the most dangerous here is that Luiz has attacked Raul's space, Raul jumps from his spot and is focused completely on the ball, for Luiz to win the ball he has to be in front of Raul and he isn't, it isn't as if Raul has appeared from nowhere he is set in that position.
If there was intent for Luiz to take Raul out then he would be rightly sent off but there clearly wasn't any but it is dangerous play and should be treated as such.