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
"Sappho"/"sapphic" are fairly common self-descriptors among teens/twentysomethings on a few subcultural niches like Tumblr. Ironically your own comment is an example of the tendency you decry; you're clearly not familiar with the markets at play here.
That is to say I personally wouldn't use a dating site themed around a reference for LGBTQ+ erasure. Though perhaps this doesn't represent everyone's opinion, and that's okay!
(For those out of the know here on Sappho/etc, see the subreddits /r/AchillesAndHisPal and r/SapphoAndHerFriend)
[Edit] my english is bad... added some changes to grammar.
The mock [1] even radiates the "millennial snowflakes" energy that used to be prevalent, with the "You are unique. You are different".
Thinking about it further, I actually think this is a super clickbait way to get hits and link clout? If you look at their blog [2], it's really just advertising all of the different dating verticals this company runs. And gosh, the names are horrifically cringey. "Sappho Dating", "Matzoball Dating", "Subtle Curry Dating"?
1: https://uploads-ssl.webflow.com/6197f007be798d88368f80d7/623... 2: https://www.getfilteroff.com/blog