59 Missing Enemies?

Don't ask me how I got this, but there are 59 missing enemies in the enemy list in ZC. I don't know if this is a bug, or some required setup so people can't mess with things they're not supposed to, or what

Any devs have an explanation, or a theory?

59 missing enemies? I'm guessing you are referring to the missing enemy numbers when you go to edit an enemy in the enemy editor.

The first 20 enemies are actually room guys (Abei, Ama, Merchant, etc...) including blank spaces for expansion.
The others are either unimplemented or special enemies (in the case of the item fairy):

Item Fairy
Ceiling Master
Floor Master
Wizzrobe (Bat 2)
Dodongo (Fire)
NPC 1 (Standing)
NPC 2 (Standing)
NPC 3 (Standing)
NPC 4 (Standing)
NPC 5 (Standing)
NPC 6 (Standing)
NPC 1 (Walking)
NPC 2 (Walking)
NPC 3 (Walking)
NPC 4 (Walking)
NPC 5 (Walking)
NPC 6 (Walking)
Trap (8-Way)
Trap (Diagonal)
Trap (/, Constant)
Trap (/, Line of Sight)
Trap (\, Constant)
Trap (\, Line of Sight)
Trap (CW, Constant)
Trap (CW, Line of Sight)
Trap (CCW, Constant)
Trap (CCW, Line of Sight)
Wizzrobe (Ice)
Tektite (L3)
Lynel (L3)
Peahat (L2)
Pols Voice (Magic)
Pols Voice (Whistle)
Darknut (Mirror)
Ghini (L2, Fire)
Ghini (L2, Magic)
Grappler Bug (HP)
Grappler Bug (MP)

What about enemies like the Zelda 3 Moldorm and the BS Aquamentus enemies? I know they're not implemented either, but are they even set to any enemy IDs here?

Also, I see three rows of enemy tiles that relate to the Floor Master (Rising, Walking, and Kid)

If they're not in the list above (or already in the visible enemy list), then they aren't set to any enemy ID's.