Yeah, SM confirmed so I guess they don't really care if fans know or not..this is not the first time Kai has been officially dating. I think it's better if things for kpop idols change and they don't have to hide their relationships cuz that way groups create fake relationship with fans and they are all living in illusions. We know it's all business but after all Kai fans didn't leave the fandom when he was dating. BigBang's Taeyang got married but his songs are classic in Korea and fans respect him.
I think the more companies lie about group members dating the angrier fans will be afterwards. And I am sure Bts will be in big trouble if someone releases photos proving they are dating because there are already many speculations of them dating and the fact that they are constantly denying it and saying they have no time for dating and that they don't even wanna think about dating is just laughable. Jin is like 26 and fans believe he doesn't think about creating a family..it's crazy. Their Idol careers will end soon and they realise that, they are not stupid, that's why they are investing in their future (like Jin opening a restaurant and the other members investing in property..) and planning everything ahead.
Fans must think rational and stop acting crazy over their "idols" cuz they are not their property and they have the right to act human like all of us...