Saturn V shed too
Scads of ice chunks fell off the Saturn V at launch -- they just weren't moving very fast. The SV didn't have quite the cryo problem the shuttle has because it was using kerosene, not liquid hydrogen as the propellant. It wasn't extensively insulated to the degree needed by an LH system.
Putting the payload on top of the part that sheds, leaks, vents or conflagrates is a really good idea. Failure to do that with the shuttle because it was so frikkin big they couldn't fit it in the VAB or on the pad if it was on top is perhaps the worst of all the compromises that were made in it's serve-all-masters design.
As far as I'm concerned, if one wants to dredge the past, some Saturn 1s would be more useful than SVs, which many nostalgia fans think would be fun to build. The SV really was too too big for other uses.
However, the best idea really does look like one of those mothership B52/Rutan concepts. Maybe that's something to do with a few of those big Airbus A380s.