In summary, IMHO, the report is basically telling us that the botanist's & entomologist's findings triangulate the timeline that ties:
(1) the date & time of death, to
(2) the body being xfer'd from the Pontiac to this disposal location without any lapse in the chain of custody of the body as determined by
(3) continuous possession the Pontiac.
IMHO, the clear possession of the Pontiac will be the thread that pulls all this together and sews Casey up.
Detailing these points
Perhaps the botanist's results re: plant growth through the skeletal remains, will be the evidence that definitively proves the body was in the final disposal location from the time it was discovered, working backwards, until the date it was removed from the Pontiac. IOW the body was not put there by someone other than Casey at a time other than when it left the trunk of the Pontiac based on the ADD (of ~2.6days) - no ZFG & no body shuffle by anyone else - period.
Perhaps the entomologists results will confirm the date & time of death independent of the circumstantial evidence we currently have (i.e. ADD of ~2.6 days is a duration not a date/time, and last known witness of 12:50PM 6/16 is all we currently have to establish the earliest possible date/time of death).
Add to the above that at no time close to the date & time of Caylees death (week of 6/15) was the Pontiac in anyones possession other than Caseys, and you have a solid chain of custody that ties Casey DIRECTLY to the body through the Pontiac. This chain of custody would prove Caseys culpability beyond a reasonable doubt, IMHO.