I'm a noob on this forum so if I do something wrong point out please!
Me and my friends were discussing things about the pledges, we thought that if you do a vet pledge you should receive an (x) amount of points or tokens and when they get so many they can purchase sets such as Engine guardian etc it just makes it more fair for people who do pledges a lot compared to people who get sets after a few goes.
Obviously if the difficulty is normal you'll get less than you would if its veteran.