If you do something for an audience it is fine to alienate everyone else. It might even be required to avoid "one size fits all" Or moving away from the topic to attract a larger audience.
Exactly--"Kosher masala pussy" needs to be right exactly once.
These are both examples of Facebook groups aimed at a large but unconnected group of people from similar backgrounds. I think they can be fundamentally considered to be "subreddits, but on Facebook". Imagine /r/BlackPeopleTwitter but for (South/)Asians.
As someone with the right context in the target demo, I find "Subtle Curry Dating" to be a hilarious name. Not only that, I think I'd be more likely to find someone I mesh with on that service than the same service with a different name.
Edit: some cursory googling revealed that "Matzoball Dating" might be a similar sort of in-joke: https://en.wikipedia.org/wiki/Matzo_Ball