You ever gone into the min crota fight in the court of oryx? 9/10 times I've had a scrub who hasn't done crota grab the sword and act like an idiot. a lot of new players don't run vault of glass or crota's end because it doesn't offer useful gear. A lot of players still get dragged through the raid or get placed in roles in which they do next to nothing. Look at top left corner on war priest, the lack of effort needed in golgoroth, or the back side on oryx. those areas hardly need any work at all compared to a properly run vault of glass that has nearly every player doing something useful(whether it guarding a conflux stopping templar from spawning, holdingthe gate open or grabing relic.) Most parts of vog and old ce strategies require a bit of work. Don't get me wrong Oryx is the most complex raid, but vog is the most fun and you actually needed a decent team back in vanilla if you wanted to do it in a reasonable time. Also they wouldn't have to change the mechanics they would just have to put the raid on level with the currently max level(or 5 levels higher) and add a different loot pool for the new difficulty(along with locking non ttk players out with a lv 40 requirement.) I like ce more the kf for a few reason. First I dislike jumping puzzle though I can easily do them without dying I usually have half or a 3rd of my team stuck on one end for about 10-15 minutes. Second the loot system in kf is complete cr@p. I wouldn't mind the random gear level(as much, it would still annoy me) if not for the fact that drops were guaranteed. I just ran the Glyph door, warpriest and Golgoroth and only got 1 pair of 316 gauntlets and 8 shards. The gauntlets were 1 point higher then my old set and had a significantly worse perk role. If that was vog or ce I would have gotten a chest piece at max lv(for vanilla or tdb respectively) a weapon, or shards/energy from each part. Instead I got shards which are guaranteed to pay out a weak item then what I have and gauntlets that are not max lv with horrible perk roles. Now if this was a rare event for my teams then it would be sorta okay but its happens nearly every week for over half my raid teams and its getting old real quick. It's one of the reasons I'm not playing destiny as much becasue the loot isn't worth it 90% of the time and that's if it drops. Apart from that I enjoy kf especially when it works but every time I've had a run on it my team get close to killing oryx and quits after we get glitched to death a few dozen times or because we have to leave but until drops improve its not worth the stress and disappointment to even run that raid.