Valve employees are at work for 5 hours already. If it was false positive, they would have already remove the Vac ban. What's hapening now, is talks between them (VALVE), organization (Fnatic) and the player (Krimz), to give us some PR bullshit and at the end they will tell us it's false positive, ye, like they couldn't remove it earlier.
To me, doesn't matter what they will say now, it is not false postive. I'm 100% sure that Fnatic contacted Valve through phone right after they start their normal working day. I'm 100% sure that VALVE know about this VAC ban for at least 4 hours already. If they didn't remove it up until now, that mean it's there for a reason.