I'd be worried that the change in people's attention spans means that a OKC clone (which as I understand relied on lots of personality questions) wouldn't work today as most people just wouldn't actually complete it. A promotional post by an "influencer" would probably make those people self-select too.
I think there is a lot of fatigue from the type of low effort, low value interactions that Tinder et al facilitate. I have no marketing data available, but I would guess there is demand for an app that at least makes an effort to create higher value connections.
The social media influencer idea solves the problem of onboarding a lot of people fast, particularly women. I disagree that the audience self selects to have low attention span- I doubt that matters if there is sufficient demand for a non-Tinder dating app experience.