There are no edicts because there is 1 battle left (Yasu doesn't even count tbh). Floor 4 was your endurance test of narrow corridors with basically impossible to avoid fights. And the last battle is a single gauntlet of dozens of enemies in a single fight. Floor 4 is endurance and fatigue management. You complete it and then move on to the final battle which is to test if your build can actually beat a long drawn out battle. Floors 1-3 build you up to the last 2 challenges, you're not going to get anything else after that. Do or die.
Once more, there is nothing forcing you to go to the final fight right away. Riots can still happen on every floor, including floor four(unless you got the third floor edict to make riots never happen again.) In fact, once you clear floor four(which I just did in a save) you end up waking up back in your room. You get out, get your reward like you did with every other floor once dude congratulates you. There is no timer saying GO BEAT THE BOSS RIGHT AWAY, you basically have freedom to do whatever.
Furthermore, the problem here is, the fact they built every floor with edicts and some way to balance riots with more control or generate income. Then you are on floor four, you beat it, look it up, and just that one edict. There is nothing. It is a dead floor. There is visual content you can see with the pool, farm, yeti place, but again nothing.
Like the creator couldn't come up with something to control the Werewolves with farming or Yetis with ice cystals. The options of controlling every other unit is there, minus slimes(which could be questionable too.) Do they get an ignore pass because they are monsters?
Speaking of which, with humanoid monsters you still have lizardfolk and orcs jumping in the various sidejobs. Also I am pretty sure you have a control means to Lizardfolk as monster race as well. Though not Yeti or Werewolves.
Also with the sidejobs, I will give Rem the very benefit of doubt to rule out Yetis due to size difference and maybe he was treating it the same as a rare monster class like Slimes. But Werewolves? They are basically orc size and probably not much bigger than such with their visual portrayal. But you have no activities or encounters with them outside of fighting them. I don't even think the gameover CG on that floor has them(or does it?) However you still have Orc and Lizardfolk encounters within the various jobs, including the GH and its DLC 2.0 equivalent.
So lets sum it up shall we.
Floors with Edicts
Floor 1
Floor 2
Floor 3
Prisoner Control Edicts
F1: Thug/Goblin
F2: Nerd/Rogue
F3: Lizardfolk/Orc
Sidejob Encounter
Basically every unit BUT Yeti, Werewolf, Slime
I can't remember if GH2.0 has Lizardfolk as lackluster that job was.
Sex Scenes
All races.
Sound
Only became complete with GYM DLC. (Non attack moves or skills like guard, cautious, lady stance, so on finally got a line to them and that is having to get additional, paid content.)
What does that leave?
No Edicts for Floor 4
No Prisoner Control methods for Yeti, Werewolf, Slime, Hobo, Prisoner(had to edit, forgot those last two, so easily missed.)
No Sidejob Encounters for Yeti, Werewolf, Slime. Or more importantly, Werewolf as it is still humanoid/big as Orc.
No additional voicelines for her secondary abilities/non-combat moves outside of GYM DLC.
Solution
Give Floor 4 edicts as simple as options of control method for Yeti and Werewolf.
Alternatively, add third addition of control for other units. F1: Thug/Goblin/Prisoner. F2: Nerd/Rogue/Slime. F3. Lizardfolk/Orc/Hobo. That just leaves F4 with odd 2 out or it could of better arrange them if just want to focus on unit control altogether in a 2 by 2 by 2 by 4 with floor layout. At least that way Floor 4 would have something to show for it, even if it is controling 4 different units behavior vs nothing at all.
Voicelines should of really been there, but hey I guess without them GYM would be complete flop.
If it had that, even if it didn't support a sidejob for that floor, I would say it would be closer to more complete than it is. But it has nothing there. Instead I guess Rem leaving it up to the fans to create content that should really be there in first place, like how fans made self inserts with the mods with the hair/eye color ones(before Rem more or less copy it into a DLC) or pregancy mods.