Faithful- on the blood issue, I hear you. If they were so sure that NO BLOOD meant NO BLOOD WHATSOEVER, then they are just unfaithful to their own teachings. Oh, they can spin about medical advances and the principle not being violated, YADDA YADDA. The bottom line- they have abandoned their principles (if they had any) over lawsuits. Similar with civilian vs. military service.
Discreet- this is my huge issue with them. While I don't hold Russell up like a founding father with some special insight, still Russell said that revealed truth would not contradict established truth. If these guys had the guidance from the spirit they claim they have, then they would have some truth, some more truth, even more truth, etc. as time goes by. If they thought something but were not sure of it, being discreet would cause them to avoid being dogmatic or mentioning it at all. They would not allow a frenzy to build over 1975 or similar in the past. They would admit that they really don't know, but that there is a possibility. There would be no flipflop on "generation" or "superior authorities" or whether Sodom and Gomorrah victims would get a resurrection. If they knew, it would be said that Holy Spirit revealed it. If they did not know, their discretion would cause them to say it has not been revealed.
Them saying in the past that they may have been overly eager is an admission that they are not discreet.