In regards to the cross & crown not being omitted it gives them an appearance of candidness. Most people don't know it's origin. they figure it's like any other cross. Omitting the flags can be excused as an oversight (which debunks their being thorough) or excuse it by saying the br's used a rented facility if it was up to them there would be no flags. Similar to when a school auditorium is used for the memorial.
That video turned a dim light on for me. That's because I was familiar with the Proclaimers and the JW's in the Divine Purpose books. I say dim because I excused the missing info by saying they don't have time to mention everything. Others who noticed missing info said the same thing. In my experience most JW's that were around to go thru the proclaimers book on the school don't remember much. Today many new ones don't even know about it unless they happen upon it on the cd-rom.
It is horrifying to me to realize the level of deception. Since it's done thru omission the avg JW chalks it up to lack of time or page space. The avg JW's are on a hamster wheel. Most work at unfulfilling jobs, then they have to keep up with a "theocratic schedule" while being human & many have families. There's no time for critical thinking. My husband is still on that wheel. I see how tired he is and how he's just getting by keeping up with it all. Now he has to do it on his own since I've left. For him & most JW's they're either going to put on the brakes and assess it all or continue on being blinded & led to the slaughter.