900-1000 estimated dead mice, Don't you think that would cause a very noticeable odor. I feel the numbers were Highly exaggerated, especially given that they were based on the assumption of many dead mice being in each section of insulation that was thrown out. I think if it had been anywhere north of 100 or more dead mice on the plane, the FAA would have confiscated the insulation and done a physical count of the mice and fined AA.
I tend to agree, but perhaps the mice quickly dried out due to the very low humidity of the cabin air at altitude. A desiccated mouse wouldn't smell very much, and even if the dead mice smelled, there's lots of terrible smells onboard that might help mask it, like airline food, lavs, and nonstop farting.