Chaosmancer
Legend
You're right, it's the point of the spell.
I'm saying it's a bad spell, because that's a bad point.
Arcane Eye gives one player the spotlight, and the gameplay looks like one of two ways:
Option 1:
ad infinitum until the player gets bored, the party (or the DM) revolts, or the dungeon is fully mapped out.
- DM: Okay, you see a long hallway, with one door at the far end, a hole in the wall on the left, and a door on the right.
- Player with Arcane Eye: Okay, I go through the door on the right. Through the key hole.
- DM: You see x, y, z, plus a, b, c.
- Arcane Eye: Okay, now the hole on the left.
- DM: You see a trap. Also d, e, f.
- Arcane Eye: Nice. Now the door in the center.
- DM: [to the rest of the party: "yeah, go ahead and grab some snacks. We'll be here awhile"]. This looks like an armory. You see g, h, and i. Opposite this room are two more doors...
Option 2:
- DM: not this again. Look, here's the map. Let's just say you know where everything is. Let's move on.
Fundamentally, it's a spell that encourages boring gameplay. The fact that boring gameplay 'is the point' doesn't make it any better.
Then find a way to make it interesting.
Have traps or charm effects that work on visuals, so seeing it through the spell triggers it. Have them see an emergency so the party has to rush into the dungeon while it is only partially explored. Make a dungeon that you hand them the map of the entire place revealed.... which means they know see that they have a puzzle because this place is nigh impregnable and they wouldn't stand a decent chance without that extra information.
And occasionally... let them just safely scout the location. A spellcaster using a spell as an "I win button" is the point of spells. Spells solve problems and provide information. That's their entire point.