I completely disagree. First, Crump's ready-made choir boy image has been completely damaged. While there are many here who think smoking pot is a common practice, it is not commonly thought of as a virtue. Further, if this case goes to trial, IMO there's a good chance that the defense will get an expert to testify on cannabis withdrawal to give a possible reason as to why TM attacked GZ (as the prosecution will surely have witnesses claiming he would never do such a thing). Sure, the defense may choose to ignore the THC levels altogether, but if the prosecution tries to use them, IMO, they'll do so at their own risk.
This was not a win for the prosecution side. And even though I think it's a wash, it is evidence that the defense may be able to use in their favor.
JMO, OMO, and MOO
It doesn't matter who thinks it's a virtue or not a virtue. What will matter is that the amounts were too low and that proves that he wasn't high when GZ said he looked like he was. The defense can say, see he wasn't like his family said he was, so what, evidence showed he wasn't high that night and whether or not he was high that night, as GZ stated, is what matters. So yes, that would be considered a win for the prosecution.
I haven't heard one expert, even ones who usually speak in favor of the defense say anything other than this is completely irrelevant to the case. Highly doubtful that anyone would ever testify that he was going through any cannibus withdrawl, no way to ever be able to prove such a thing, how much or how long Trayvon even smoked pot.