About the secret rooms.

I've noticed that since WotL came out, it's been much much harder to find the secret room. Usualy pre-WotL you knew that secret rooms had to be atleast connected to two other rooms, usually three. This made it easy to find the secret room on the earlier levels like Basement 1 and 2.

Now i was playing earlier and i noticed that the secret room requirements has probably changed.

See this pic: http://imgur.com/8ebq5

I marked the two spots that the secret room could be in, but as you see the room is in neither of them. So i guess that for a secret room to appear it only has to connect with one other room like the new "top secret" rooms?