Its very simple why a player is better off choosing thru a portal instead of going straight to the casino.
suppose something goes wrong
Here’s your choices:
1. You signed straight thru to the casino. It’s you and them baby.
2. You signed thru a portal. You now have a 3rd party with an interest in seeing you satisfied, which also happens to be considerably more influentual with the casino than just you, since you’re representing only one player. The portal represents the possibility of an endless supply of players, for all the casino knows.
Now which person, #1, or #2, has the best chance of getting whatever went wrong, fixed to their satisfaction?