Iirc Dzemael Darkhold was different in 1.0, I seem to remember the final boss being in a huge chamber rather than the T-junction room we got in 2.0. So it may lead down to that area.
I feel like the shape of the room is pretty much the same as where you encountered Batraal in old Darkhold, just a lot smaller.
Like in the current open main segment of the room is where the pillars and skellingtons were, and where the crystal tucked in the top left corner is is where Batraal actually was.
Been a while though so, I'm probably wrong.
I only vaguely recall it, I just remember it being a lot larger and thought it was a round room.
EDIT: Not round, I think it was square/rectangle like with rounded edges and a prong coming off it in the southeast corner.
The old maps can be seen here: http://www.ffxivmaps.com/old.html (Ctrl+F, "dz" to find dzemael quickly, final boss room is on 2nd map)
Comparing with the new maps, thanks to the helpful "Knight's Quarters" and "Altar to Saint Daniffen" indicators that show that the battlefields are in the same location, the final boss room is like... maybe 1/4 of what it once was. I can't say I've noticed this supposed spider's web before, but it certainly doesn't account for the drastic reduction in space. Most of the area probably caved in, or the 2.0 map people were like... "this is unnecessarily large" and just nixed large portions of it. The fact that Batraal is way bigger than he used to be plus the room being smaller makes for a very exaggerated effect though.
A wizardcalamity did it
Only a good half of DD was traversable between the two games.
Spoiler: show
Please tell me those arrows over the green lines are 1 way ledges.
I think they are the barriers that are impassable until you trigger them to fall
Yeah DD looked very similar in 1.0 but there are several maps changes in terms of ledges and the general space allocation within rooms. The first pull/hallways to the first boss is very similar to what it was in 1.0, as is the pit where you fight the second boss, as is the skeleton room. These dungeons only had two bosses in vanilla though, now they all have three so that's one major change.
Excalibur(IMO) has some good people.. Sucks I have to go(and I really don't wanna go) though, wish I could bring my friend to the server.
Edit: rephrased because original sentence sounded kind of bad.
I abslutely love the uncapped / undersized df feature. Yesterday a friend of mine got me into 2maning some of the old content. We killed Shiva Ex / Titan Ex as SCH / WAR and then he dragged me into 2man Steps of Faith. We went in as SCH /BRD and ended up two-shotting it after the first wipe at 16%. It was fuckin hilarious, especially since we didn't have limit and messed up the first Dragonkiller. Today we wanna try Moogle Ex, SO looking forward to it.
I heard you don't get kingly whiskers doing moogle ex uncapped. idk if true though.
I'll be extremely impressed if you can 2-man moogle-x. The dark/light debuffs make it tough. The charm makes it tough. We've three manned it with a drk sch and brd.
Can't just wait it out, dmg is too high and you get cleaved by everything. So far we tried putting Selene on sick, but she dispelles it too fast, so you need very good timing on Leeches to get through. The rest seemed not too terrible, but we only got to the third wave so far (didn't see enrage). Still experimenting around, trying to tank 8 stacks in Deliverance n stuff, but I think it's def doable.