Imagine the slurry of advanced-decomposition biomass still contained inside that suit ever since the bacteria ran out of oxygen... far, far worse in my opinion. In fact, unless the suit was twisting along the spinal axis where the ends of the arms and legs could be used for pooling, all that slurry would be floating around inside the suit as a combination of mist and gases, to the point where we wouldn't even see the skull. =)
(There is a possibility that the gastrointestinal flora, as anaerobic lifeforms, might actually be able to decompose the rest of the bacteria before they succumb to nutrient deprivation. But I figure the bacteria on the skin would be more than sufficient to devour the gastrointestinal bacteria first.)
What I find interesting about this mod is the possibility of having human corpses as debris from ships; I get that it's a title-screen-only effect, but it'd be morbidly interesting to have (properly downscaled) bodies float away. A hint of SPAZ, essentially.
One word: Bushwhacked. (Okay, two words: Firefly & Bushwhacked.)