#1 Allowing wrestlers to fight in their tournaments without signing a WWE contract
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Barring the WWE United Kindom Championship Tournament, WWE has allowed wrestlers from other promotions to compete in their tournaments without signing a contract. If they wanted to win the tournament, they had to pen the deal. However, the mere authorization to participate without signing a contract shouldn't be underemphasized.
Anyone who had witnessed the terrific in-ring skills of Kota Ibushi in the Cruiserweight Classic Tournament would have googled his whereabouts if they didn't know him earlier. It is sad that the adamant WWE fans will probably never witness the services of Golden Star again. The same can be said about Zack Sabre Jr. who advanced to the semi-finals of the tournament using his terrific submission skills.
Tournaments like the Cruiserweight Classic Tournament and the Mae Young Classic Tournament again showed the casual WWE audience what they were missing on by ignoring the independent wrestling. WWE's failure to sign these wrestlers has turned out to be a boom for the independent promotions. They must have grabbed the attention of a good share of the casual WWE audience through their own tournaments.