I agree. I tell people to never handle their snake for two days after feeding.
I would, in an emergency do so to a snake, but that doesn't mean you SHOULD do it- unless your house is burning down & you are getting all the pets out. That's an absolute to me that should be pretty important. I would rather have my snake regurg and be sick awhile and even die later from the regurg than let it become snake roast. The risk of them dying from a regurgitation is less than the risk of death/ permenant injury from fire. The rules of pet care obviously need to be a little flexible, in cases where there is a greater benefit (saving snake's life) and a lesser negative consequence (regurgitation, possibly sickness or death due to stress of an emergency).
I know occasionally rules are broken, and most of the time nothing bad comes of it. While nothing is completely absolute, it doesn't mean you can't try to stick to your guns. There are exceptions to just about every rule, but that doesn't mean the rules are worthless. and should be broken for whatever reason.