That is true, that's why everyone should go to SubscribeStar.
I agree, but SubscribeStar doesn't have the user base that Patreon does. I think adult game devs should be setting up both, and encouraging people to use SS over Patreon if possible for that reason... but it's no secret that the potential income from SS is much less than Patreon.
I tried to use SubscribeStar only, but they take too long to verify pages. Had to make a Patreon in the end because I got tired of not hearing anything back from SubscribeStar support for 3 weeks.
Luckily, I don't care too much for the income from the game. But the fact that my SubcribeStar did not work for the first 2 weeks of my game being released due to support not verifying my page for three weeks, means I missed a lot of people that wanted to subscribe.
I wanted to use SubscribeStar, but they're just not reliable, not responding to e-mails. If they ever decided to take my page down for any reason, I have no faith at all in their support to resolve it. So in the end I just switched to Patreon, and made sure my game didn't break their ToS. Which sadly meant removing all taboo elements from the game.
(Patreon approved my page in about 24 hours, SubscribeStar took 3 weeks.)