we are going in what see in previous events
In the first time only a few chieftains did, and was enough to put the entire horde corrupted in a bloodlust bound by the Legion will, the only ones safe were the ones far away in quarentene.
The second time only Grom and some soldiers with him drank it, and the clan with him got corrupted, even the beasts were affected by fel energies like the Kodo.
With those events, and they only showing kil'rog drinking, we can expect the same scenario, only a few drinking and fucking everyone else, only the ones with
"iron will" were able to resist, like Grom and Ariok(again completely bullshit from the wod writers, they don't even put their colors right, they should be green, or if the demon blood was more potent, it should be red, nothing make much sense anyway.)