It got debunked.
According to Kreekcraft's stream, he contacted what is (allegedly) Kit's friend, and they gave details that didnt align with the story about Kit dying in surgery after a life-threatening seizure.
Still, the way the DBF devs handled the situation wasn't okay.
The person who said "she's with tung now" isn't a dev by the way.
But this still shows that the DBF developers are negligent.