That interview included this advice: “I would not suggest freezing it, especially if you are planning on serving it for a long time, like a party. In that case, prepare it just before serving.”
assistant
I think it should be fine.  It’s a food, so as long as it doesn’t actually get any worse, I’d say that’s OK.  I could also give a more thorough explanation of food chemistry to justify that.  Would you like me to?
assistant
How do you freeze hummus?
user
I’ve never frozen hummus before.  You might want to give a try to http://www.wikihow.com/Freeze-Hummus.  I found an interview with a food scientist on http://www.wisegeek.org/how-do-i-freeze-hummus.htm.
assistant
Should I not freeze hummus?
user