You might be cool with Arcane Eye! I was not in that moment.
I think "in that moment" is the important part here. We DMs design dungeons with certain assumptions in mind. At later levels, players get the ability to scout remotely with
arcane eye and walk through walls with
stone shape. Suddenly the assumptions go out the window, and we usually don't learn about it until the players do something unexpected (and often adventure-breaking). It almost becomes inevitable after a certain point, because once you add in enough factors -- such as 50-100 spells -- then the possibilities become endless. That's why designing high-level adventures is so hard. You can't account for everything, and the only way to really safeguard your dungeon is to throw in some impassible barriers that stop certain spells from functioning ("Oooold magic," as Matt Mercer would say).
As for
arcane eye, I had a similar experience. The Wizard player actually discussed it with me beforehand, and we agreed that a scouting mission would take up way too much time. Then, as I started the session, he exclaimed, "Wait! I thought I was going to use
arcane eye to scout ahead!" Cue 30 minutes of everyone sitting around as that one player explored half the dungeon.
Later on, I realized that I'd handled the situation incorrectly. I gave room-by-room descriptions, as I would with any dungeon exploration, as opposed to a bullet-point run-down of the dungeon layout. Here's how I
should have done it: "Okay, here's a map of what you saw. Doors block these three passages. There's an orc here, three sitting around a table here, and an ogre sleeping behind the curtain. Halfway down this corridor, there's a trip-wire, and on the door at the end of this corridor, there's a glyph."
Suddenly 30 minutes of exploration becomes 5, and the players have what they want: an idea of what to expect, and the ability to plan accordingly.
Someone might think that
arcane eye ruins a dungeon, and in some cases it does, but sometimes it
enhances it. I'm reminded of an episode of
Acquisitions, Inc. where Chris Perkins gave the group a complete map of the dungeon they were about to enter (provided by a friendly NPC or something). Rather than ruin the experience, it added to it, as the players then spent
hours planning their assault. So, yes, utilizing
arcane eye results in a different dynamic, but that dynamic is still a lot of fun.