Patrons and Aurum

Now I like the free to play model. This model is very similar to Star Trek Online. Has an exchange, drop boxes etc. Just about every major MMO that has a free to play model gives their in game currency on a monthly basis to their subscribers.

STO/Neverwinter you get 500 zen a month ESO 500 Crowns Swotor 500 Cartel Coins

Why aren't we getting 500 Aurum?