I agree with the speakers above; bringing back eliminated players to the tournament is absurd, in my opinion. I understand that this is a testing ground for you, but people are striving to win and putting in effort, and then it's like in Dota, where you can buy back and continue playing.
Additional replacement matches don't create more matches; they simply allow players to play the games that they couldn't play for some reason. So, for those competing for victory in the tournament, nothing fundamentally changes – they still need to win in the round of 16, the round of 8, the quarterfinals, the semifinals, and the final.