I agree, it's a bit sparse. But according to the plot, the Dungeon isn't meant for gameplay quests, only for moving towards the Guardians. Frankly, I just didn't feel like filling it with monsters, resources, and terrain =)). But if this affects the map's chances in the contest and I can still fix it, please let me know.
Of course, it matters. I consider such empty areas as "fields" and severely deduct points for them. Please keep this in mind. No one will be interested in running around in an empty basement :)
Sincerely, K0Lb@zzeR.