I don't think it even walks or quacks like a duck. I interpret it as she broke rules that do not require establishing intent, fault, negligence, or knowing use, and she was not able to prove "not intentional". She's gone for 4 years, but the question is, was the process just?
For all your lecturing, it looks like you didn't read any of Tygart's statement before your initial post. For example: "We need to work just as hard to exonerate the innocent as we do pursuing the true cheaters." This is where the AIU failed Houlihan in a big way. My expectation is what USADA anti-doping chief Tygart has done for 27 US athletes since 2015 -- help them navigate through the WADA Code around this nearly impossible athlete burden to prove what is caused by the various meat industries, or in other cases (e.g. Getzmann) during manufacture of prescription drugs. Because on face value, the standard of "strict liability" is quite a convenient shortcut for organizations prosecuting ADRVs, but it is not a fair process for athletes who have innocently ingested small amounts of a banned substance. We have seen this in the cases of Getzmann, Lawson, and 27 USADA athletes.
Tygart doesn't speak about all rule-breaking athletes, but just this small class of athlete who tests positive consistent with unknowingly ingesting small amounts a banned substance, e.g. from normal meals, who are suddenly forced to become experts in the world of meat processing, and in Houlihan's case, the temporary but signficant deviations from the normal practices during the pandemic.
The lengthy and elaborate process was according to the WADA Code, which, if you had seen any of his statements, is precisely what Tygart has repeatedly claimed needs to be reformed, for this small class of USDA approved meat eating athlete.
For all these calls of honesty, from "fans", the process is so one-sided, that there is just no way to tell from the AIU prosecution and the CAS report that Houlihan was not being honest. (And the CAS did not find her dishonest, but rather "credible"). The AIU did not "debunk" Houlihan's story, but gave the equivalent argument of "people struck by lightning rarely happens". All we can say is that Houlihan was unable to obtain "concrete and specific" evidence she needed to clear her name to the burden required, and "guilty until proven innocent" did the rest. The AIU "near-zero" argument fails in the public domain for the same reason the AIU says Houlihan's arguments should fail: it is not "based on specific and concrete elements". None of the AIU arguments, or speculated alternative, are connected to Houlihan, except for the unexplained presence of a small amount of nandrolone, which can be of endogenous, or exogenous origin.
All you "smart persons" may have fallen for it, but I'm not going to pretend "2.5x the limit" is a large amount, when, according to studies on small sample sizes, including by Prof. Ayotte's own study, eating pork offal can put you 65x-80x above the limit, and intentionally injecting nandrolone can put you 1000x-1500x above the limit. The 2 ng/ml threshold is too small a threshold for intact pork offal ingestion -- something WADA explicitly considers "endogenous" and will give positive values of the low ng/ml range of less than 10 ng/ml.