I'd say the market is ripe for disruption, but in terms of profit potential, the casino games are probably going to be the winning model for awhile.
I have some friends who started a relatively niche dating app that is genuinely focused on connecting people, without games of luck, and though the app itself is not really a 5-star app in terms of design and development (don't tell them I said that), the fact that it's genuinely focused on connecting people has made it my preferred app in my very small dating niche. I'm not really sure if the same is possible on a mainstream scale.