I think what most people view as "handling" is holding it for 30min+ letting it climb and slither around on the floor, which is much different than moving it just to clean it's enclosure.
When you handle a snake "for fun" you put a lot of pressure on it's stomach which I could see causing a regurg on a full snake.
48hrs might be a little extensive, I usually wait 30-36 hours and they are fine, imo it's better to be safe than sorry, I never want to deal with a regurg.