CapnZapp
Legend
I think it's worthwhile to differentiate between theory and practice here.
The rules (=theory) does in no way mandate a "no empty rooms" approach.
In practice (=published official adventures) however, there's a clear tendency to avoid empty rooms.
For me, who think the "no empty room" approach is simplistic and artificial to the point where I'm sick just thinking of it, the solution is easy.
Don't run Wizards' pre-made adventures.
The rules (=theory) does in no way mandate a "no empty rooms" approach.
In practice (=published official adventures) however, there's a clear tendency to avoid empty rooms.
For me, who think the "no empty room" approach is simplistic and artificial to the point where I'm sick just thinking of it, the solution is easy.
Don't run Wizards' pre-made adventures.