As I recall the OJ trial, much more time was devoted to "educating" the jury as to the soundness of the "science," and its "reliability." On the one hand, one could say: "So what?" That jury didn't care a bit, for science.
But seriously, it seems like the prosecution failed to drive home, the degree of reliability, for hair, fiber, blood and DNA. Likewise, he failed to question the bug guy, as to the range of error for weather as a variable.
The jury is left to decide, what weight to give to one bit of physical evidence, versus another.
Both sides got the bug guy to make a statement, which serves their case; leaving it inconclusive, as I heard it (therefore both sides can quote the statement he made, favoring their position).
As I view the case today, I predict a hung jury. Some jurors will see the physical evidence against DW, and not be able to believe all of the items are just a "coincidence." Maybe it would fall under a calculation of "compound probability" (if that is the correct statistical term).
Those voting to acquit or not guilty, will see the chance, individually, for each item of physical evidence to have occured, and for DW to not have killed the 7 year old girl, used his SUV and MH to transport her, gotten her hair, blood, DNA and fibers all around him.
I THINK YOU ARE COMPLETELY CORRECT, as far as how the jury will see this and what the might do.
And what the JURY DECIDES, will be the bottom line to this case.