That's meta-gaming, though, by asking the players to make a different decision than their characters would make. Any mechanic which encourages meta-gaming as a solution is a broken mechanic for an RPG.
No, it really, really isn't. It's something you happen not to like, but, you not liking it doesn't make it broken.
The tendency to conflate personal taste for value judgements is nearly universal.
A better solution would be to just ban the spell outright, or skip the twenty minutes of solo play and hand the players a map. It sounds like this spell removes an interesting element of gameplay for some groups, but that's no different than a spell to create food and water which removes a different element of gameplay that another group might enjoy. It's kind of a thing that higher spell levels will let you ignore more and more inconveniences, starting with Light and ending with Teleport.
Not really though. Foraging for food and water, in most games, is a single die roll. It's 30 seconds at the table. Adding in a Goodberry spell to the group basically means that the group is losing out on 30 seconds of play. I've never seen a group spend twenty minutes of game time on food foraging and preparation. Perhaps my experience is just too limited.
The issue with this spell is that it creates a Shadowrunesque Decker problem. The player uses his spell, which lasts a LONG time (1 minute/level, 10 minutes/level? I forget, but, at 10 actions/minute, that's a HELL of a lot of exploration) and can basically ROV the entire dungeon/building/whatever, at zero risk to the character. It's going to catch a LOT of the exploration aspect of a very large dungeon.
And the problem is, it's all one character doing it. Generally sending the wild shaped druid in to do searching results in the druid player checking stuff out for a minute or two, then coming back and reporting to the party in order to deal with whatever it is the character has found. It rarely means that the entire region gets explored. And besides that, you might even have two or three PC's going scouting at the same time - after all, it's not unlikely that a group will have more than one stealthy character.
I can see this as being a real PITA when it hits the table. This is something that's going to hit the light of day an awful lot once the players realize just how incredibly useful it is.