Oh yeah, they can be defeated without cheese. And I did that after cheesing it out
But the question I'm answering is "did the devs want us to cheese this one"? And the answer is yes, cheese is what's for dinner.
I think you and I have different ideas of what "cheese" is in this context. The fact we have access to the roof and that the ogres have the ability to throw things to knock us off or break down the roof to make us fall suggests that the devs wanted to make for an engaging fight with multiple ways to resolve it. That isn't cheese.
Cheese is when you exploit the AI's limitations to win an encounter in a way that wasn't intended. Like when my ranger soloed the druegar fight by casting Fog and hiding so he could slowly snipe the druegar and their undead down with no fear of retaliation.
