No, I don't think it has anything to do with the flies.
I don't think it was particularly highlighted to the jurors, but it was discussed at trial.
none that I can mentally grasp, unless the body was moved prior to discovery, The advanced stage of decomposition tells me that it should have been there......I do know that newborns carry little or no bacteria in their bodies and hence, effects the stages of decomp.
"Could it have any relationship to the fly issues?"
I am not quite sure what you mean by this question, can you elaborate???
"Was this highlighted to the jury?"
Not that I recall (yes, I know I sound like Hillary..)But I do not remember if it was even mentioned during the trial, I remember the grease marks, the hair clumps, the bug activity, the mummified areas etc...... but not whether it was stressed during trial