Tedious spell descriptions aren't fun for anybody, RandalT.
It's the very specific wording that make it odd for me.
I'm sure the creators of the spell didn't want a hand cart/hand truck/little red wagon/wheel barrel/dolly/trolley (whatever you call it where you live), that could be used for any other purpose. It's only for moving bodies...
Some questions that come to mind..
Are the bodies together on one "surface" or floating like a parapetetic "train"? Are they supported evenly and level; if leaky bodies, does it pool or leave a trail; can you use 'bodies' as a surface to carry other stuff if you're not over the weight limit; If I'm moving my train/pile o'bodies and the lazy halfling jumps on top to catch a ride...
So, by using different wording, it could be a little less vague, but also used for other purposes. My guess is the authors didn't want a 'T's Floating Disc' (from another game) and stipulated that it could only move bodies. Also, the short duration doesn't allow much room for playing around; which is probably a good thing.
Still,
200#/3lvls, follows caster ~waist high (or must be pushed/towed), mx speed: walk
is kinda what I was talking about.. I'll have to find a List for this version to fit.