The tenets of knowledge can be summed up as follows: That one should strive always to advance truth to the full extent of one's capacity. To lie, or otherwise spread untruth is sin; equally sinful is to prevent the spread of truthful information. The practitioner is obligated, should they be aware, to counter any misinformation they find. Perhaps most damning is a refusal to actively encourage the spread of truth. Thus are the tenets of knowledge, and their sins.
idk for sure but in my imo the fact that actively seeking knowledge isn't an explicit tenet is intentional. moriel generally values the publicity of knowledge more than the knowledge itself, and their adherents are likely to be knowledge seekers anyway. so that way if they have to compromise on something, the tenets suggest what to do, without otherwise really changing any behaviour whatsoever
and yes, to those paying attention, this isn't a moral framework. ethics has no bearing on any of this, really, unless your ethical system is built around it instead of realistic concerns. don't do this
this is also a big part of why moriel is so scary. and possibly having the power to enforce compliance doesn't help