I bet it was staged. THE number one mantra, in comedy, is that anything goes and if you are offended by a bit, no matter what the reason may be, it's your fault that you find offense. There are no exceptions to this rule among comedians. I bet it comes out that it was a fake. Why else would someone stand there after being slapped PLIS, if it was real, I feel like the hit was delivered hard enough to make him fall back and, most likely, down.
Other than that I wish every one of these liberal puke buckets would go away. Anyone watching that show is brain damaged imo.