That's a big question.
It depends, to some extent, on the degree of risk that has to be proven. I don't think the law makes that clear. Is it necessary to prove that it was possible that it could happen? Probable? Plausible? That is where the law is open to interpretation.
A judge could easily consider that there is always a risk of losing control when a person becomes intoxicated. Others might argue that most people who become intoxicated do not become violent, as was mentioned earlier. Regardless, some people definitely become violent before reaching a state of extreme intoxication.
Ultimately, it's never foreseeable. That is why my recommendation is to monitor how the law ends up being interpreted, because the parameters proposed for guiding the courts could obscure the meaning of the law, rather than clarify it.