And the exact percentage on the BRI split would depend on how big the pool of money is. In other words, worst case scenario for the players is 49%, but if BRI brings in money past a certain point, then the players' cut would increase to a maximum of 51%. They're calling it a 49-51 "band split", I believe.
From my understanding, based on how much BRI has brought in during past seasons, it would most likely turn out to be a 50-50 split, but they're trying to entice the players with idea that they might get 51%.