Both Praetorium and Meridianum need a complete rework.
Both should be just normal Lvl 50 Dungeons, which should become just playable with an ARR based version of the Trust system with the order of the dawning npcs at that timeline, so Alisae (Summoner) , Yda (Monk), Papalimo (Blackmage), Alphinaud (Scholar), Minfilia (Whitemage), Cid (Machinist) and turning Grey Rock as Paladin and his caster friend , (Redmage, someone has to have taught Alisae how to be a Redmage) of the order into Trust NPCs too
Shorten the stuff, both have alot of unneccessary scenes and boring long talks that could easily be shortened to cut these two things down to dungeon format.
Doing this will help also newer players to catch up quicker, if you dont have to do all the ARR stuff with other players, but could use also just for the dungeon runs the trust npcs, without needing to wait for party members each time.
And yes UW should be an own trial, heck even such retarded garbage like the lvl 20 fight against Ifrit is one, where every veteran player could puke innerly to get drawn into this noob BS, and there you have that big final boss of ARR, that even gets not a spot as trial - ridiculous, and that only because of it being part of the MSQ roulette.
Seriouslr, remove that crap MSQ roulette and replace it with a better more senseful roulette, like a Treasure Hunter Roulette that puts 8 players into a random treasure hunt dungeon, or into Diadem, so that player get daile the chance once to go into them, without needibg to buy maps first, find the spot, kill a craload of trash mobs, just to have a big chance of wasting time, because of no entrance to the dungeon spawning.
Poetics Stone are not everything, there are more than enough options to get those stones elswhere fast