I believe he is referring to the case of Weev.
Note I'm not taking a position on whether any possible TOS violations rise to the level of a CFAA violation, or whether DOJ would care, just that waving around terms like "mens rea" does not an actual rebuttal make.
Or, if you prefer a high school civics sur-rebuttal, "ignorance of the law is no defense." :)
It does vary from jurisdiction to jurisdiction, but strict liability is still rare and still largely constrained to summary offences, not indictable offences.
Regardless of whether you are in a purely code jurisdiction or purely common law jurisdiction or some hybrid, there usually has to be additional effort by a legislator to indicate that strict liability applies.
IANAL, TINLA.